Alright, let's work through 1421 times 1109 step by step
1421 × 1109 = 1109 × (1421)
+ 1109 × 1 yielding 1109
+ 1109 × 20 giving us 22180
+ 1109 × 400 giving us 443600
+ 1109 × 1000 yielding 1109000

= 1575889
