Alright, let's work through 1856 times 1340 step by step
1856 × 1340 = 1340 × (1856)
+ 1340 × 6 yielding 8040
+ 1340 × 50 yielding 67000
+ 1340 × 800 that is equal 1072000
+ 1340 × 1000 which equals 1340000

= 2487040
