We are sampling without replacement, so the probability is selecting a heart then selecting a club.
First draw : P(Selecting A Heart)= 13/52
Second draw: P(Selecting A Club|Heart)=13/51
So, the probability of both events happening is P(Selecting A Heart)*P(Selecting A Club|Heart)= 13/52*13/51
1/4*13/51=13/204
So, this is our probability of selecting a heart and then a club. Hope this helps!