Alright, let's work through 9825 times 8312 step by step
9825 × 8312 = 8312 × (9825)
+ 8312 × 5 giving us 41560
+ 8312 × 20 that results in 166240
+ 8312 × 800 that equals 6649600
+ 8312 × 9000 yielding 74808000

= 81665400
