Sure thing, let's get straight to it. We start with 671 and we're going to multiply it by 3, which means adding 671 to itself 3 times.
Step 1: 0 + 671 = 671
Step 2: 671 + 671 = 1342
Step 3: 1342 + 671 = 2013

So, 671*3 = 2013