Alright, let's work through 80426834 times 89359950 step by step
80426834 × 89359950 = 89359950 × (80426834)
+ 89359950 × 4 giving us 357439800
+ 89359950 × 30 that equals 2680798500
+ 89359950 × 800 that is equal 71487960000
+ 89359950 × 6000 that is equal 536159700000
+ 89359950 × 20000 that equals 1787199000000
+ 89359950 × 400000 yielding 35743980000000
+ 89359950 × 0000000 which equals 0
+ 89359950 × 80000000 giving us 7148796000000000

= 7186937864898300
