OK, let's crack this. We're given 433 and our task is to multiply it by 3. Essentially, we'll be adding 433 to itself 3 times.
Step 1: 0 + 433 = 433
Step 2: 433 + 433 = 866
Step 3: 866 + 433 = 1299

So, 433*3 = 1299