Alright, let's work through 6442 times 1523 step by step
6442 × 1523 = 1523 × (6442)
+ 1523 × 2 which equals 3046
+ 1523 × 40 yielding 60920
+ 1523 × 400 which equals 609200
+ 1523 × 6000 that is equal 9138000

= 9811166
