Alright, let's work through 2563 times 8323 step by step
2563 × 8323 = 8323 × (2563)
+ 8323 × 3 yielding 24969
+ 8323 × 60 what gives us 499380
+ 8323 × 500 that results in 4161500
+ 8323 × 2000 yielding 16646000

= 21331849
