Sure thing! We've got 518 and we're gonna multiply it by 12. That's the same as adding 518 to itself 12 times.
Step 1: 0 + 518 = 518
Step 2: 518 + 518 = 1036
Step 3: 1036 + 518 = 1554
Step 4: 1554 + 518 = 2072
Step 5: 2072 + 518 = 2590
Step 6: 2590 + 518 = 3108
Step 7: 3108 + 518 = 3626
Step 8: 3626 + 518 = 4144
Step 9: 4144 + 518 = 4662
Step 10: 4662 + 518 = 5180
Step 11: 5180 + 518 = 5698
Step 12: 5698 + 518 = 6216

So, 518*12 = 6216