Alright, let's work through 84949858 times 63868979 step by step
84949858 × 63868979 = 63868979 × (84949858)
+ 63868979 × 8 giving us 510951832
+ 63868979 × 50 that results in 3193448950
+ 63868979 × 800 what gives us 51095183200
+ 63868979 × 9000 that equals 574820811000
+ 63868979 × 40000 that is equal 2554759160000
+ 63868979 × 900000 giving us 57482081100000
+ 63868979 × 4000000 which equals 255475916000000
+ 63868979 × 80000000 what gives us 5109518320000000

= 5425660696654982
