Alright, let's work through 8903 times 5561 step by step
8903 × 5561 = 5561 × (8903)
+ 5561 × 3 which equals 16683
+ 5561 × 00 which equals 0
+ 5561 × 900 resulting in 5004900
+ 5561 × 8000 that is equal 44488000

= 49509583
