OK, let's work through this together. We're starting with 137 and we're going to multiply it by 7, which means we add 137 to itself 7 times.
Step 1: 0 + 137 = 137
Step 2: 137 + 137 = 274
Step 3: 274 + 137 = 411
Step 4: 411 + 137 = 548
Step 5: 548 + 137 = 685
Step 6: 685 + 137 = 822
Step 7: 822 + 137 = 959

So, 137*7 = 959