We're going to solve 8603 multiplied by 5009
8603 × 5009 = 5009 × (8603)
+ 5009 × 3 which equals 15027
+ 5009 × 00 that results in 0
+ 5009 × 600 yielding 3005400
+ 5009 × 8000 resulting in 40072000

= 43092427
