Alright, let's work through 1043 times 810 step by step
1043 × 810 = 810 × (1043)
+ 810 × 3 that is equal 2430
+ 810 × 40 what gives us 32400
+ 810 × 000 that results in 0
+ 810 × 1000 producing 810000

= 844830
