Alright, let's work through 21062383 times 38354794 step by step
21062383 × 38354794 = 38354794 × (21062383)
+ 38354794 × 3 that results in 115064382
+ 38354794 × 80 which equals 3068383520
+ 38354794 × 300 resulting in 11506438200
+ 38354794 × 2000 that is equal 76709588000
+ 38354794 × 60000 producing 2301287640000
+ 38354794 × 000000 that results in 0
+ 38354794 × 1000000 resulting in 38354794000000
+ 38354794 × 20000000 what gives us 767095880000000

= 807843361114102
