Sure thing, let's get straight to it. We start with 902 and we're going to multiply it by 3, which means adding 902 to itself 3 times.
Step 1: 0 + 902 = 902
Step 2: 902 + 902 = 1804
Step 3: 1804 + 902 = 2706

So, 902*3 = 2706