Let's roll up our sleeves and solve this. We have 417 and we're going to multiply it by 4, essentially adding 417 to itself 4 times.
Step 1: 0 + 417 = 417
Step 2: 417 + 417 = 834
Step 3: 834 + 417 = 1251
Step 4: 1251 + 417 = 1668

So, 417*4 = 1668