D can't expect any, because if it comes down to B and D, then B can keep it all.

Therefor Q could propose a 99/0/1 split and earn D's vote, so B can't expect any.

Similarly, F could get B's vote with a 99/0/1/0 split, so Q can't expect any.

Finally, C can get Q's and D's votes with a 98/0/1/0/1 split, because they each get zero in the next round.

By quick, and possibly reckless backwards induction, the Captain proposes keeping 98 while the Quartermaster and the Deckhand each get 1.