Alright, let's work through 72373320 times 42253261 step by step
72373320 × 42253261 = 42253261 × (72373320)
+ 42253261 × 0 giving us 0
+ 42253261 × 20 that results in 845065220
+ 42253261 × 300 giving us 12675978300
+ 42253261 × 3000 yielding 126759783000
+ 42253261 × 70000 giving us 2957728270000
+ 42253261 × 300000 resulting in 12675978300000
+ 42253261 × 2000000 that is equal 84506522000000
+ 42253261 × 70000000 what gives us 2957728270000000

= 3058008779396520
