Let's roll up our sleeves and solve this. We have 418 and we're going to multiply it by 4, essentially adding 418 to itself 4 times.
Step 1: 0 + 418 = 418
Step 2: 418 + 418 = 836
Step 3: 836 + 418 = 1254
Step 4: 1254 + 418 = 1672

So, 418*4 = 1672