Without delay, let's solve this. We've got 224 and we will be multiplying it by 4, that is, adding 224 to itself 4 times.
Step 1: 0 + 224 = 224
Step 2: 224 + 224 = 448
Step 3: 448 + 224 = 672
Step 4: 672 + 224 = 896

So, 224*4 = 896