Alright, let's work through 3563 times 3836 step by step
3563 × 3836 = 3836 × (3563)
+ 3836 × 3 giving us 11508
+ 3836 × 60 yielding 230160
+ 3836 × 500 that is equal 1918000
+ 3836 × 3000 producing 11508000

= 13667668
