Alright, let's work through 9835 times 4065 step by step
9835 × 4065 = 4065 × (9835)
+ 4065 × 5 that is equal 20325
+ 4065 × 30 that is equal 121950
+ 4065 × 800 resulting in 3252000
+ 4065 × 9000 that equals 36585000

= 39979275
