Alright, let's work through 1840 times 2870 step by step
1840 × 2870 = 2870 × (1840)
+ 2870 × 0 yielding 0
+ 2870 × 40 giving us 114800
+ 2870 × 800 resulting in 2296000
+ 2870 × 1000 that results in 2870000

= 5280800
