Alright, let's work through 80848892 times 63359210 step by step
80848892 × 63359210 = 63359210 × (80848892)
+ 63359210 × 2 resulting in 126718420
+ 63359210 × 90 that results in 5702328900
+ 63359210 × 800 what gives us 50687368000
+ 63359210 × 8000 giving us 506873680000
+ 63359210 × 40000 what gives us 2534368400000
+ 63359210 × 800000 that results in 50687368000000
+ 63359210 × 0000000 giving us 0
+ 63359210 × 80000000 yielding 5068736800000000

= 5122521926495320
