Alright, let's work through 1866 times 9947 step by step
1866 × 9947 = 9947 × (1866)
+ 9947 × 6 resulting in 59682
+ 9947 × 60 that equals 596820
+ 9947 × 800 that results in 7957600
+ 9947 × 1000 which equals 9947000

= 18561102
