Let's roll up our sleeves and solve this. We have 77 and we're going to multiply it by 8, essentially adding 77 to itself 8 times.
Step 1: 0 + 77 = 77
Step 2: 77 + 77 = 154
Step 3: 154 + 77 = 231
Step 4: 231 + 77 = 308
Step 5: 308 + 77 = 385
Step 6: 385 + 77 = 462
Step 7: 462 + 77 = 539
Step 8: 539 + 77 = 616

So, 77*8 = 616