Alright, let's work through 38235951 times 20051021 step by step
38235951 × 20051021 = 20051021 × (38235951)
+ 20051021 × 1 giving us 20051021
+ 20051021 × 50 which equals 1002551050
+ 20051021 × 900 that equals 18045918900
+ 20051021 × 5000 which equals 100255105000
+ 20051021 × 30000 what gives us 601530630000
+ 20051021 × 200000 that equals 4010204200000
+ 20051021 × 8000000 that results in 160408168000000
+ 20051021 × 30000000 resulting in 601530630000000

= 766669856455971
