Alright, let's work through 9897 times 3680 step by step
9897 × 3680 = 3680 × (9897)
+ 3680 × 7 giving us 25760
+ 3680 × 90 what gives us 331200
+ 3680 × 800 that is equal 2944000
+ 3680 × 9000 yielding 33120000

= 36420960
