Let's get this math done. We have 651 and we're going to multiply it by 5. This is the same as taking 651 and adding it to itself 5 times.
Step 1: 0 + 651 = 651
Step 2: 651 + 651 = 1302
Step 3: 1302 + 651 = 1953
Step 4: 1953 + 651 = 2604
Step 5: 2604 + 651 = 3255

So, 651*5 = 3255