Sure thing! We've got 331 and we're gonna multiply it by 7. That's the same as adding 331 to itself 7 times.
Step 1: 0 + 331 = 331
Step 2: 331 + 331 = 662
Step 3: 662 + 331 = 993
Step 4: 993 + 331 = 1324
Step 5: 1324 + 331 = 1655
Step 6: 1655 + 331 = 1986
Step 7: 1986 + 331 = 2317

So, 331*7 = 2317