Alright, let's work through 85254977 times 62108483 step by step
85254977 × 62108483 = 62108483 × (85254977)
+ 62108483 × 7 that is equal 434759381
+ 62108483 × 70 yielding 4347593810
+ 62108483 × 900 that results in 55897634700
+ 62108483 × 4000 that is equal 248433932000
+ 62108483 × 50000 that results in 3105424150000
+ 62108483 × 200000 producing 12421696600000
+ 62108483 × 5000000 that results in 310542415000000
+ 62108483 × 80000000 what gives us 4968678640000000

= 5295057289669891
