Alright, let's work through 3982085 times 51257367 step by step
3982085 × 51257367 = 51257367 × (3982085)
+ 51257367 × 5 yielding 256286835
+ 51257367 × 80 giving us 4100589360
+ 51257367 × 000 yielding 0
+ 51257367 × 2000 giving us 102514734000
+ 51257367 × 80000 producing 4100589360000
+ 51257367 × 900000 what gives us 46131630300000
+ 51257367 × 3000000 which equals 153772101000000

= 204111192270195
