Alright, let's work through 96985820 times 83510787 step by step
96985820 × 83510787 = 83510787 × (96985820)
+ 83510787 × 0 that equals 0
+ 83510787 × 20 that is equal 1670215740
+ 83510787 × 800 what gives us 66808629600
+ 83510787 × 5000 that results in 417553935000
+ 83510787 × 80000 giving us 6680862960000
+ 83510787 × 900000 yielding 75159708300000
+ 83510787 × 6000000 giving us 501064722000000
+ 83510787 × 90000000 that equals 7515970830000000

= 8099362156040340
