Challenge

You have a 1000-card deck with cards numbered from 0 to 999 that you'd like to sort. You have a small table to sort the cards on, which can hold up to 64 piles of cards. You can't stick cards in the middle of a pile, but you can split a pile into additional piles (as long as you don't go over the limit).

Can you describe out a good way to sort the entire deck of cards?