When the deck is fresh, it has 52 cards, and 4 of them are fives.
The probability of picking a five is ( 4 / 52 ).
Now the deck has 51 cards in it, and 48 of them are not fives.
The probability of picking a not-five is ( 48 / 51 ).
The probability of both successes in order is
( 4/52 ) x ( 48 / 51 ) = 7.24 % (rounded)
I have no idea which formula to use. Let me know if my answer is wrong.