Let's calculate 80850271 x 67745999
80850271 × 67745999 = 67745999 × (80850271)
+ 67745999 × 1 yielding 67745999
+ 67745999 × 70 resulting in 4742219930
+ 67745999 × 200 resulting in 13549199800
+ 67745999 × 0000 that is equal 0
+ 67745999 × 50000 that results in 3387299950000
+ 67745999 × 800000 that equals 54196799200000
+ 67745999 × 0000000 that is equal 0
+ 67745999 × 80000000 resulting in 5419679920000000

= 5477282378315729
