I find it makes more logical sense to visualise and mark out the sleeve or chart with a centre. In this case the centre 14 stitches are a full chart. Another full chart sit either side and the partial chart stitches sit outside of this, at the beginning and end of the row/round. The chart won’t align across the BOR, that’s like a seam, the pattern will be disrupted but it will be neat and symmetrical.
9, 14, 14, 14, 8 (placing markers on your needles at these points should help)
Starting at stitch 6 there are 9 sts to end of chart
Then 3 full charts of 14 sts across with the centre chart always staying centred on the outer sleeve.
Then 8 sts (sts 1,2,3,4,5 complete the chart to where you began at st 6, then 3 more are sts 6,7,8).
If you look at the sts in columns stitch 6 and 8, they make a straight line up, symetrical, so the chart won’t be off, it will be very nice, these are the columns each side of the BOR/seam/underarm.
You can print off the chart several times and cut and stick them together to make an entire sleeve chart with the increases drawn on if it helps. Or you can draw it on squared paper.
Here’s the first few increases marked up.
At round 5 an increase of 1 st at beginning will be worked as stitch 5. An increase at the end will be worked as stitch 9
I hope this helps some.