No problem, we've got 84891744 and 45522553 to multiply
84891744 × 45522553 = 45522553 × (84891744)
+ 45522553 × 4 what gives us 182090212
+ 45522553 × 40 which equals 1820902120
+ 45522553 × 700 which equals 31865787100
+ 45522553 × 1000 that results in 45522553000
+ 45522553 × 90000 that results in 4097029770000
+ 45522553 × 800000 resulting in 36418042400000
+ 45522553 × 4000000 giving us 182090212000000
+ 45522553 × 80000000 that results in 3641804240000000

= 3864488915502432
