Alright, let's work through 8728 times 9970 step by step
8728 × 9970 = 9970 × (8728)
+ 9970 × 8 what gives us 79760
+ 9970 × 20 which equals 199400
+ 9970 × 700 resulting in 6979000
+ 9970 × 8000 yielding 79760000

= 87018160
