Alright, let's work through 1887 times 2089 step by step
1887 × 2089 = 2089 × (1887)
+ 2089 × 7 what gives us 14623
+ 2089 × 80 that results in 167120
+ 2089 × 800 that results in 1671200
+ 2089 × 1000 resulting in 2089000

= 3941943
