Alright, let's work through 83437474 times 72766889 step by step
83437474 × 72766889 = 72766889 × (83437474)
+ 72766889 × 4 resulting in 291067556
+ 72766889 × 70 resulting in 5093682230
+ 72766889 × 400 yielding 29106755600
+ 72766889 × 7000 yielding 509368223000
+ 72766889 × 30000 what gives us 2183006670000
+ 72766889 × 400000 which equals 29106755600000
+ 72766889 × 3000000 that equals 218300667000000
+ 72766889 × 80000000 resulting in 5821351120000000

= 6071485408998386
