Alright, let's work through 1865 times 1142 step by step
1865 × 1142 = 1142 × (1865)
+ 1142 × 5 that equals 5710
+ 1142 × 60 yielding 68520
+ 1142 × 800 giving us 913600
+ 1142 × 1000 that equals 1142000

= 2129830
