Counting and Probability: Conducting Simulations

Lucas wants to start a movie club at his high school. The principal states that Lucas must find at least four more students to build the club with him. Lucas decides to ask nine people if they will join the club. There is a $\dfrac{2}{3}$ chance that each person will say yes. $\\$

How can a simulation be conducted to find the probability of at least four people joining the club?