Let's roll up our sleeves and solve this. We have 862 and we're going to multiply it by 4, essentially adding 862 to itself 4 times.
Step 1: 0 + 862 = 862
Step 2: 862 + 862 = 1724
Step 3: 1724 + 862 = 2586
Step 4: 2586 + 862 = 3448

So, 862*4 = 3448