OK, let's work through this together. We're starting with 36 and we're going to multiply it by 9, which means we add 36 to itself 9 times.
Step 1: 0 + 36 = 36
Step 2: 36 + 36 = 72
Step 3: 72 + 36 = 108
Step 4: 108 + 36 = 144
Step 5: 144 + 36 = 180
Step 6: 180 + 36 = 216
Step 7: 216 + 36 = 252
Step 8: 252 + 36 = 288
Step 9: 288 + 36 = 324

So, 36*9 = 324