Alright, let's work through 1855 times 7866 step by step
1855 × 7866 = 7866 × (1855)
+ 7866 × 5 that results in 39330
+ 7866 × 50 resulting in 393300
+ 7866 × 800 that is equal 6292800
+ 7866 × 1000 resulting in 7866000

= 14591430
