Alright, let's work through 84243717 times 70835155 step by step
84243717 × 70835155 = 70835155 × (84243717)
+ 70835155 × 7 yielding 495846085
+ 70835155 × 10 resulting in 708351550
+ 70835155 × 700 what gives us 49584608500
+ 70835155 × 3000 producing 212505465000
+ 70835155 × 40000 which equals 2833406200000
+ 70835155 × 200000 that results in 14167031000000
+ 70835155 × 4000000 that is equal 283340620000000
+ 70835155 × 80000000 yielding 5666812400000000

= 5967416751471135
