Alright, let's work through 3561 times 5504 step by step
3561 × 5504 = 5504 × (3561)
+ 5504 × 1 that is equal 5504
+ 5504 × 60 giving us 330240
+ 5504 × 500 resulting in 2752000
+ 5504 × 3000 that is equal 16512000

= 19599744
