Alright, let's work through 5803 times 1561 step by step
5803 × 1561 = 1561 × (5803)
+ 1561 × 3 that equals 4683
+ 1561 × 00 which equals 0
+ 1561 × 800 that results in 1248800
+ 1561 × 5000 giving us 7805000

= 9058483
