Alright, let's work through 6603 times 4360 step by step
6603 × 4360 = 4360 × (6603)
+ 4360 × 3 what gives us 13080
+ 4360 × 00 giving us 0
+ 4360 × 600 giving us 2616000
+ 4360 × 6000 producing 26160000

= 28789080
