Alright, let's work through 72408814 times 37921493 step by step
72408814 × 37921493 = 37921493 × (72408814)
+ 37921493 × 4 giving us 151685972
+ 37921493 × 10 producing 379214930
+ 37921493 × 800 resulting in 30337194400
+ 37921493 × 8000 what gives us 303371944000
+ 37921493 × 00000 what gives us 0
+ 37921493 × 400000 which equals 15168597200000
+ 37921493 × 2000000 what gives us 75842986000000
+ 37921493 × 70000000 yielding 2654504510000000

= 2745850333239302
