Help with socks please

Hello I am having problems with knitting some socks. here is a portion of the pattern:

:NSTRUCTIONS
The instructions are written for smallest size. If changes are necessary for larger sizes the instructions will be written thus ( ).
Cast on 84 sts loosely. Divide into 24, 36 and 24 sts on 1st, 2nd and 3rd needles. Join in rnd, placing a marker on first st.Work in (K2. P2) ribbing for 1½ ins [4 cm].
Proceed in Cable Pat as follows:
1st and 2nd rnds: *P1. (K1. P1) twice. P2. K4. P1. Rep from * around.
3rd and 4th rnds: *P1. (P1. K1) twice. P2. K4. P1. Rep from * around.
5th rnd: *P1. (K1. P1) twice. P2. C4B. P1. Rep from * around.
6th rnd: As 1st rnd.
7th and 8th rnds: As 3rd and 4th rnds.
9th and 10th rnds: *P1. K4. P2. (K1. P1) twice. P1. Rep from * around.
11th and 12th rnds: *P1. K4. P2. (P1. K1) twice. P1. Rep from * around.
13th rnd: *P1. C4B. P2. (K1. P1) twice. P1. Rep from * around.
14th rnd: As 9th rnd.
15th and 16th rnds: As 11th and 12th rnds.
These 16 rnds form Cable Pat.

Cont in Cable Pat until work from beg measures approx 6½ ins [16.5 cm], ending on a 16th rnd of Cable Pat.
Next rnd: 1st needle: (K6. P2tog) 3 times. 2nd needle: Pat to end of needle. 3rd needle: (K6. P2tog) 3 times. 78 sts in rnd divided as 21, 36 and 21 sts on 1st, 2nd and 3rd needles. Break yarn.
Arrange heel sts: Slip last 4 sts from 1st needle onto beg of 2nd needle. Slip first 4 sts from 3rd needle onto end of 2nd needle. Divide 44 sts from 2nd needle onto 2 needles and leave for instep. Slip sts from 3rd needle onto 1st needle for heel.
Make heel: Next row: (RS). *K1. Sl1. Rep from * to last 2 sts. K2.
Next row: K1. Purl to last st. K1.
Rep these 2 rows for 2½ ins [6 cm], ending with RS facing for next row.
Shape Heel: Next row: K21. Sl1. K1. psso. Turn.
Next row: P9. P2tog. Turn.
Next row: K9. Sl1. K1. psso. Turn.
Next row: P9. P2tog. Turn.
Rep last 2 rows until all sts are worked, thus ending with RS facing for next row. 10 sts.
Shape instep: With RS of work facing and 1st needle, knit and pick up and knit 16 sts along left side of heel.With 2nd needle, pat across 44 sts for instep. With 3rd needle, pick up and knit 16 sts from right side of heel, then knit first 5 heel sts. 86 sts in rnd divided as 21, 44, and 21 sts on 1st, 2nd and 3rd needles.
1st rnd: 1st needle: Knit to last 3 sts. K2tog. K1. 2nd needle: Pat to end of needle. 3rd needle: K1. Sl1. K1. psso. Knit to end of needle.
Work 1 rnd even.
Rep last 2 rnds to 78 sts divided as 17, 44 and 17 sts on 1st, 2nd and 3rd needles.
Keeping instep sts in cable pat, cont even until foot from picked up sts at heel measures 6½ (7½-8½) ins [17 (19-22) cm].

I have gotten to the part where I am supposed to work the heel. I have divided all stitches as asked, with 44 stitches for instep and the rest for the heel however I am confused as to how I would continue the pattern once I get to shaping the instep. It says (2nd needle pat to end). I understand I am supposed to stay in the pattern at this point which would be row 2, however I am only working with 44 stitches and row 2 calls for 12 stitches for each repeat where I would be 4 stitches short, meaning 44 stitches is what I have after dividing for the heel and in order for each repeat to go in evenly i need 48 stitches instead of 44… 12 stitches for each repeat on row 2 times 4 is 48 , so I want to know exactly how I would continue the pattern in the instep. Please someone help I am very confused and i want to finish :mad: :wall: :gah:

It’s important to look at your sts and see what the pattern is doing. You know that you want to continue the cables along the instep just as they have been set up from the beginning.
Right now needle #2 has 4sts-12-12-12-4sts for a total of 44sts. You’ll continue the pattern on the middle sets of 12 as usual and that will let the cables continue from the beginning of the sock to the toe. In pattern, the first 4st are k1,p1,k1,p1 and the last 4sts are p1,k3. It would be uneven to continue these orphan sts in pattern as they are now, so I would switch them to knit sts to blend in with the knit sts on needles #1 and 3. Alternatively you could leave the first 4sts as k1,p1,k1,p1 and make the last 4sts balance this as p1,k1,p1,k1.
Whichever you decide to do, it may help to put a stitch marker on either side of the 12-12-12 so that you remember where the cable pattern repeats are.