Let's calculate 72049999 x 51823511
72049999 × 51823511 = 51823511 × (72049999)
+ 51823511 × 9 that equals 466411599
+ 51823511 × 90 yielding 4664115990
+ 51823511 × 900 resulting in 46641159900
+ 51823511 × 9000 producing 466411599000
+ 51823511 × 40000 that results in 2072940440000
+ 51823511 × 000000 which equals 0
+ 51823511 × 2000000 which equals 103647022000000
+ 51823511 × 70000000 yielding 3627645770000000

= 3733883915726489
