Let's get this math done. We have 221 and we're going to multiply it by 4. This is the same as taking 221 and adding it to itself 4 times.
Step 1: 0 + 221 = 221
Step 2: 221 + 221 = 442
Step 3: 442 + 221 = 663
Step 4: 663 + 221 = 884

So, 221*4 = 884