We're going to solve 8638 multiplied by 9080
8638 × 9080 = 9080 × (8638)
+ 9080 × 8 producing 72640
+ 9080 × 30 that results in 272400
+ 9080 × 600 producing 5448000
+ 9080 × 8000 what gives us 72640000

= 78433040
