OK, let's crack this. We're given 960 and our task is to multiply it by 9. Essentially, we'll be adding 960 to itself 9 times.
Step 1: 0 + 960 = 960
Step 2: 960 + 960 = 1920
Step 3: 1920 + 960 = 2880
Step 4: 2880 + 960 = 3840
Step 5: 3840 + 960 = 4800
Step 6: 4800 + 960 = 5760
Step 7: 5760 + 960 = 6720
Step 8: 6720 + 960 = 7680
Step 9: 7680 + 960 = 8640

So, 960*9 = 8640