Alright, let's work through 84512857 times 36510956 step by step
84512857 × 36510956 = 36510956 × (84512857)
+ 36510956 × 7 producing 255576692
+ 36510956 × 50 that results in 1825547800
+ 36510956 × 800 yielding 29208764800
+ 36510956 × 2000 producing 73021912000
+ 36510956 × 10000 giving us 365109560000
+ 36510956 × 500000 giving us 18255478000000
+ 36510956 × 4000000 that results in 146043824000000
+ 36510956 × 80000000 resulting in 2920876480000000

= 3085645203361292
