OK, let's work through this together. We're starting with 744 and we're going to multiply it by 3, which means we add 744 to itself 3 times.
Step 1: 0 + 744 = 744
Step 2: 744 + 744 = 1488
Step 3: 1488 + 744 = 2232

So, 744*3 = 2232