Let's get this math done. We have 284 and we're going to multiply it by 11. This is the same as taking 284 and adding it to itself 11 times.
Step 1: 0 + 284 = 284
Step 2: 284 + 284 = 568
Step 3: 568 + 284 = 852
Step 4: 852 + 284 = 1136
Step 5: 1136 + 284 = 1420
Step 6: 1420 + 284 = 1704
Step 7: 1704 + 284 = 1988
Step 8: 1988 + 284 = 2272
Step 9: 2272 + 284 = 2556
Step 10: 2556 + 284 = 2840
Step 11: 2840 + 284 = 3124

So, 284*11 = 3124