Alright, let's work through 1850 times 2873 step by step
1850 × 2873 = 2873 × (1850)
+ 2873 × 0 that is equal 0
+ 2873 × 50 yielding 143650
+ 2873 × 800 that equals 2298400
+ 2873 × 1000 that is equal 2873000

= 5315050
