Alright, let's work through 72808238 times 18739507 step by step
72808238 × 18739507 = 18739507 × (72808238)
+ 18739507 × 8 which equals 149916056
+ 18739507 × 30 that equals 562185210
+ 18739507 × 200 that equals 3747901400
+ 18739507 × 8000 yielding 149916056000
+ 18739507 × 00000 giving us 0
+ 18739507 × 800000 producing 14991605600000
+ 18739507 × 2000000 giving us 37479014000000
+ 18739507 × 70000000 resulting in 1311765490000000

= 1364390485658666
