Alright, let's work through 1563 times 8573 step by step
1563 × 8573 = 8573 × (1563)
+ 8573 × 3 that results in 25719
+ 8573 × 60 yielding 514380
+ 8573 × 500 that results in 4286500
+ 8573 × 1000 resulting in 8573000

= 13399599
