Let's roll up our sleeves and solve this. We have 632 and we're going to multiply it by 4, essentially adding 632 to itself 4 times.
Step 1: 0 + 632 = 632
Step 2: 632 + 632 = 1264
Step 3: 1264 + 632 = 1896
Step 4: 1896 + 632 = 2528

So, 632*4 = 2528