Alright, let's work through 1566 times 1641 step by step
1566 × 1641 = 1641 × (1566)
+ 1641 × 6 giving us 9846
+ 1641 × 60 that results in 98460
+ 1641 × 500 giving us 820500
+ 1641 × 1000 resulting in 1641000

= 2569806
