Alright, let's work through 6561 times 9791 step by step
6561 × 9791 = 9791 × (6561)
+ 9791 × 1 which equals 9791
+ 9791 × 60 that is equal 587460
+ 9791 × 500 that is equal 4895500
+ 9791 × 6000 yielding 58746000

= 64238751
