Alright, let's work through 9643 times 6728 step by step
9643 × 6728 = 6728 × (9643)
+ 6728 × 3 what gives us 20184
+ 6728 × 40 that is equal 269120
+ 6728 × 600 that is equal 4036800
+ 6728 × 9000 that equals 60552000

= 64878104
