Alright, let's work through 1785 times 812 step by step
1785 × 812 = 812 × (1785)
+ 812 × 5 which equals 4060
+ 812 × 80 giving us 64960
+ 812 × 700 that is equal 568400
+ 812 × 1000 resulting in 812000

= 1449420
