Alright, let's work through 5603 times 8606 step by step
5603 × 8606 = 8606 × (5603)
+ 8606 × 3 that equals 25818
+ 8606 × 00 which equals 0
+ 8606 × 600 yielding 5163600
+ 8606 × 5000 that equals 43030000

= 48219418
