OK, let's work through this together. We're starting with 939 and we're going to multiply it by 5, which means we add 939 to itself 5 times.
Step 1: 0 + 939 = 939
Step 2: 939 + 939 = 1878
Step 3: 1878 + 939 = 2817
Step 4: 2817 + 939 = 3756
Step 5: 3756 + 939 = 4695

So, 939*5 = 4695