Can someone help me with this problem, TI-84 calculator, please?

In a standard 52-card deck of playing cards, each card has one of four suits: spade, heart, club, or diamond. There are 13 cards of each suit. Alison thoroughly shuffles a standard deck, draws a card, then returns it to the deck, and shuffles again. She repeats this process until she has drawn seven cards. Find the probability that she draws at most two spade cards. Use a TI-84 calculator to find the probability.