No problem, we've got 9897 and 2104 to multiply
9897 × 2104 = 2104 × (9897)
+ 2104 × 7 what gives us 14728
+ 2104 × 90 that equals 189360
+ 2104 × 800 which equals 1683200
+ 2104 × 9000 that results in 18936000

= 20823288
