Let's roll up our sleeves and solve this. We have 794 and we're going to multiply it by 4, essentially adding 794 to itself 4 times.
Step 1: 0 + 794 = 794
Step 2: 794 + 794 = 1588
Step 3: 1588 + 794 = 2382
Step 4: 2382 + 794 = 3176

So, 794*4 = 3176