OK, let's crack this. We're given 157 and our task is to multiply it by 6. Essentially, we'll be adding 157 to itself 6 times.
Step 1: 0 + 157 = 157
Step 2: 157 + 157 = 314
Step 3: 314 + 157 = 471
Step 4: 471 + 157 = 628
Step 5: 628 + 157 = 785
Step 6: 785 + 157 = 942

So, 157*6 = 942