Alright, let's work through 9869 times 797 step by step
9869 × 797 = 797 × (9869)
+ 797 × 9 that results in 7173
+ 797 × 60 that results in 47820
+ 797 × 800 that is equal 637600
+ 797 × 9000 that equals 7173000

= 7865593
