Let's get this math done. We have 151 and we're going to multiply it by 6. This is the same as taking 151 and adding it to itself 6 times.
Step 1: 0 + 151 = 151
Step 2: 151 + 151 = 302
Step 3: 302 + 151 = 453
Step 4: 453 + 151 = 604
Step 5: 604 + 151 = 755
Step 6: 755 + 151 = 906

So, 151*6 = 906