Sure thing, let's get straight to it. We start with 538 and we're going to multiply it by 12, which means adding 538 to itself 12 times.
Step 1: 0 + 538 = 538
Step 2: 538 + 538 = 1076
Step 3: 1076 + 538 = 1614
Step 4: 1614 + 538 = 2152
Step 5: 2152 + 538 = 2690
Step 6: 2690 + 538 = 3228
Step 7: 3228 + 538 = 3766
Step 8: 3766 + 538 = 4304
Step 9: 4304 + 538 = 4842
Step 10: 4842 + 538 = 5380
Step 11: 5380 + 538 = 5918
Step 12: 5918 + 538 = 6456

So, 538*12 = 6456