Let's roll up our sleeves and solve this. We have 211 and we're going to multiply it by 4, essentially adding 211 to itself 4 times.
Step 1: 0 + 211 = 211
Step 2: 211 + 211 = 422
Step 3: 422 + 211 = 633
Step 4: 633 + 211 = 844

So, 211*4 = 844