Alright, let's work through 2810 times 409 step by step
2810 × 409 = 409 × (2810)
+ 409 × 0 what gives us 0
+ 409 × 10 that results in 4090
+ 409 × 800 what gives us 327200
+ 409 × 2000 what gives us 818000

= 1149290
