Let's roll up our sleeves and solve this. We have 712 and we're going to multiply it by 6, essentially adding 712 to itself 6 times.
Step 1: 0 + 712 = 712
Step 2: 712 + 712 = 1424
Step 3: 1424 + 712 = 2136
Step 4: 2136 + 712 = 2848
Step 5: 2848 + 712 = 3560
Step 6: 3560 + 712 = 4272

So, 712*6 = 4272