Let's get this math done. We have 330 and we're going to multiply it by 5. This is the same as taking 330 and adding it to itself 5 times.
Step 1: 0 + 330 = 330
Step 2: 330 + 330 = 660
Step 3: 660 + 330 = 990
Step 4: 990 + 330 = 1320
Step 5: 1320 + 330 = 1650

So, 330*5 = 1650