The question is to show that the probability that each of the four players in a game of bridge receives one ace is24 • 48! • 134
52!
My explanation so far is that there are 4! ways to arrange the 4 aces, 48! ways to arrange the other cards, and since each arrangement is equally likely we divide by 52!. I believe the 134 represents the number of arrangements to distribute 4 aces among 13 cards, but I don't see why we must multiply by this value as well?