We're going to solve 72029986 multiplied by 80731831
72029986 × 80731831 = 80731831 × (72029986)
+ 80731831 × 6 producing 484390986
+ 80731831 × 80 resulting in 6458546480
+ 80731831 × 900 producing 72658647900
+ 80731831 × 9000 giving us 726586479000
+ 80731831 × 20000 which equals 1614636620000
+ 80731831 × 000000 producing 0
+ 80731831 × 2000000 producing 161463662000000
+ 80731831 × 70000000 giving us 5651228170000000

= 5815112656684366
