We're going to solve 99889942 multiplied by 76371065
99889942 × 76371065 = 76371065 × (99889942)
+ 76371065 × 2 that results in 152742130
+ 76371065 × 40 that equals 3054842600
+ 76371065 × 900 which equals 68733958500
+ 76371065 × 9000 producing 687339585000
+ 76371065 × 80000 giving us 6109685200000
+ 76371065 × 800000 yielding 61096852000000
+ 76371065 × 9000000 giving us 687339585000000
+ 76371065 × 90000000 producing 6873395850000000

= 7628701253328230
