OK, let's work through this together. We're starting with 689 and we're going to multiply it by 3, which means we add 689 to itself 3 times.
Step 1: 0 + 689 = 689
Step 2: 689 + 689 = 1378
Step 3: 1378 + 689 = 2067

So, 689*3 = 2067