OK, let's crack this. We're given 411 and our task is to multiply it by 4. Essentially, we'll be adding 411 to itself 4 times.
Step 1: 0 + 411 = 411
Step 2: 411 + 411 = 822
Step 3: 822 + 411 = 1233
Step 4: 1233 + 411 = 1644

So, 411*4 = 1644