Alright, let's work through 38777768 times 81525728 step by step
38777768 × 81525728 = 81525728 × (38777768)
+ 81525728 × 8 which equals 652205824
+ 81525728 × 60 yielding 4891543680
+ 81525728 × 700 what gives us 57068009600
+ 81525728 × 7000 which equals 570680096000
+ 81525728 × 70000 what gives us 5706800960000
+ 81525728 × 700000 what gives us 57068009600000
+ 81525728 × 8000000 producing 652205824000000
+ 81525728 × 30000000 resulting in 2445771840000000

= 3161385766415104
