Alright, let's work through 6643 times 9323 step by step
6643 × 9323 = 9323 × (6643)
+ 9323 × 3 what gives us 27969
+ 9323 × 40 what gives us 372920
+ 9323 × 600 yielding 5593800
+ 9323 × 6000 that equals 55938000

= 61932689
