We're going to solve 80700814 multiplied by 20326690
80700814 × 20326690 = 20326690 × (80700814)
+ 20326690 × 4 resulting in 81306760
+ 20326690 × 10 giving us 203266900
+ 20326690 × 800 which equals 16261352000
+ 20326690 × 0000 giving us 0
+ 20326690 × 00000 which equals 0
+ 20326690 × 700000 that results in 14228683000000
+ 20326690 × 0000000 what gives us 0
+ 20326690 × 80000000 yielding 1626135200000000

= 1640380428925660
