Let's roll up our sleeves and solve this. We have 772 and we're going to multiply it by 4, essentially adding 772 to itself 4 times.
Step 1: 0 + 772 = 772
Step 2: 772 + 772 = 1544
Step 3: 1544 + 772 = 2316
Step 4: 2316 + 772 = 3088

So, 772*4 = 3088