Let's get this math done. We have 662 and we're going to multiply it by 7. This is the same as taking 662 and adding it to itself 7 times.
Step 1: 0 + 662 = 662
Step 2: 662 + 662 = 1324
Step 3: 1324 + 662 = 1986
Step 4: 1986 + 662 = 2648
Step 5: 2648 + 662 = 3310
Step 6: 3310 + 662 = 3972
Step 7: 3972 + 662 = 4634

So, 662*7 = 4634