Let's get this math done. We have 971 and we're going to multiply it by 4. This is the same as taking 971 and adding it to itself 4 times.
Step 1: 0 + 971 = 971
Step 2: 971 + 971 = 1942
Step 3: 1942 + 971 = 2913
Step 4: 2913 + 971 = 3884

So, 971*4 = 3884