Probability problem

In one 52-card deck, what is the probability that the ACE of Spade will show up before four (4) cards of the same suit (any suit) appears on the table the first time? The four cards with the same suit may appear in any sequence (1st, 3rd, 5th, 6th or any other sequence) as long as there are 4 cards with the same on the table. Please show computations.

Thank you.