We're going to solve 8521 multiplied by 8702
8521 × 8702 = 8702 × (8521)
+ 8702 × 1 which equals 8702
+ 8702 × 20 that equals 174040
+ 8702 × 500 giving us 4351000
+ 8702 × 8000 yielding 69616000

= 74149742
