Alright, let's work through 37728729 times 39899788 step by step
37728729 × 39899788 = 39899788 × (37728729)
+ 39899788 × 9 producing 359098092
+ 39899788 × 20 giving us 797995760
+ 39899788 × 700 giving us 27929851600
+ 39899788 × 8000 resulting in 319198304000
+ 39899788 × 20000 giving us 797995760000
+ 39899788 × 700000 producing 27929851600000
+ 39899788 × 7000000 producing 279298516000000
+ 39899788 × 30000000 that equals 1196993640000000

= 1505368288609452
