Alright, let's work through 84945760 times 52811915 step by step
84945760 × 52811915 = 52811915 × (84945760)
+ 52811915 × 0 that is equal 0
+ 52811915 × 60 producing 3168714900
+ 52811915 × 700 resulting in 36968340500
+ 52811915 × 5000 resulting in 264059575000
+ 52811915 × 40000 producing 2112476600000
+ 52811915 × 900000 that results in 47530723500000
+ 52811915 × 4000000 that results in 211247660000000
+ 52811915 × 80000000 that equals 4224953200000000

= 4486148256730400
