Alright, let's work through 1221 times 3563 step by step
1221 × 3563 = 3563 × (1221)
+ 3563 × 1 producing 3563
+ 3563 × 20 that is equal 71260
+ 3563 × 200 giving us 712600
+ 3563 × 1000 that results in 3563000

= 4350423
