Alright, let's work through 72438625 times 31342839 step by step
72438625 × 31342839 = 31342839 × (72438625)
+ 31342839 × 5 yielding 156714195
+ 31342839 × 20 that is equal 626856780
+ 31342839 × 600 giving us 18805703400
+ 31342839 × 8000 that results in 250742712000
+ 31342839 × 30000 giving us 940285170000
+ 31342839 × 400000 what gives us 12537135600000
+ 31342839 × 2000000 that is equal 62685678000000
+ 31342839 × 70000000 yielding 2193998730000000

= 2270432160756375
