OK, let's work through this together. We're starting with 958 and we're going to multiply it by 4, which means we add 958 to itself 4 times.
Step 1: 0 + 958 = 958
Step 2: 958 + 958 = 1916
Step 3: 1916 + 958 = 2874
Step 4: 2874 + 958 = 3832

So, 958*4 = 3832