Let's roll up our sleeves and solve this. We have 753 and we're going to multiply it by 3, essentially adding 753 to itself 3 times.
Step 1: 0 + 753 = 753
Step 2: 753 + 753 = 1506
Step 3: 1506 + 753 = 2259

So, 753*3 = 2259