Let's get this math done. We have 348 and we're going to multiply it by 3. This is the same as taking 348 and adding it to itself 3 times.
Step 1: 0 + 348 = 348
Step 2: 348 + 348 = 696
Step 3: 696 + 348 = 1044

So, 348*3 = 1044