Neckline shaping

I am currently working on a sweater which calls for me to shape neckline and in this manner:

Bind off 2 sts at beg of next 2 tows, 3 sts at beg of next 4 rows, AT SAME TIME, place center 24 sts on on holder for neck & working both sides at once, bind off from neck edge 2 sts once and 1 dec 1 st every other row once.
Mind you I have started out with 46 sts. I have done it over and over and cannot figure it out. Is there a rule of thumb when working a pattern that states AT THE SAME TIME?

I would do the same thing you said…bo 2, work to center 24, place on holder and continue.