Alright, let's work through 6653 times 1715 step by step
6653 × 1715 = 1715 × (6653)
+ 1715 × 3 that is equal 5145
+ 1715 × 50 which equals 85750
+ 1715 × 600 that is equal 1029000
+ 1715 × 6000 yielding 10290000

= 11409895
