Alright, let's work through 84243906 times 45683787 step by step
84243906 × 45683787 = 45683787 × (84243906)
+ 45683787 × 6 yielding 274102722
+ 45683787 × 00 which equals 0
+ 45683787 × 900 that is equal 41115408300
+ 45683787 × 3000 that equals 137051361000
+ 45683787 × 40000 that is equal 1827351480000
+ 45683787 × 200000 that is equal 9136757400000
+ 45683787 × 4000000 resulting in 182735148000000
+ 45683787 × 80000000 giving us 3654702960000000

= 3848580657752022
