OK, let's work through this together. We're starting with 659 and we're going to multiply it by 4, which means we add 659 to itself 4 times.
Step 1: 0 + 659 = 659
Step 2: 659 + 659 = 1318
Step 3: 1318 + 659 = 1977
Step 4: 1977 + 659 = 2636

So, 659*4 = 2636