Without delay, let's solve this. We've got 629 and we will be multiplying it by 7, that is, adding 629 to itself 7 times.
Step 1: 0 + 629 = 629
Step 2: 629 + 629 = 1258
Step 3: 1258 + 629 = 1887
Step 4: 1887 + 629 = 2516
Step 5: 2516 + 629 = 3145
Step 6: 3145 + 629 = 3774
Step 7: 3774 + 629 = 4403

So, 629*7 = 4403