Alright, let's work through 83311952 times 13911638 step by step
83311952 × 13911638 = 13911638 × (83311952)
+ 13911638 × 2 that results in 27823276
+ 13911638 × 50 that equals 695581900
+ 13911638 × 900 giving us 12520474200
+ 13911638 × 1000 that results in 13911638000
+ 13911638 × 10000 giving us 139116380000
+ 13911638 × 300000 that results in 4173491400000
+ 13911638 × 3000000 producing 41734914000000
+ 13911638 × 80000000 that results in 1112931040000000

= 1159005717297376
