Without delay, let's solve this. We've got 631 and we will be multiplying it by 7, that is, adding 631 to itself 7 times.
Step 1: 0 + 631 = 631
Step 2: 631 + 631 = 1262
Step 3: 1262 + 631 = 1893
Step 4: 1893 + 631 = 2524
Step 5: 2524 + 631 = 3155
Step 6: 3155 + 631 = 3786
Step 7: 3786 + 631 = 4417

So, 631*7 = 4417