Alright, let's work through 1810 times 931 step by step
1810 × 931 = 931 × (1810)
+ 931 × 0 resulting in 0
+ 931 × 10 that is equal 9310
+ 931 × 800 which equals 744800
+ 931 × 1000 that is equal 931000

= 1685110
