Alright, let's work through 6603 times 3189 step by step
6603 × 3189 = 3189 × (6603)
+ 3189 × 3 yielding 9567
+ 3189 × 00 yielding 0
+ 3189 × 600 producing 1913400
+ 3189 × 6000 what gives us 19134000

= 21056967
