No problem, we've got 9897 and 2021 to multiply
9897 × 2021 = 2021 × (9897)
+ 2021 × 7 that equals 14147
+ 2021 × 90 yielding 181890
+ 2021 × 800 what gives us 1616800
+ 2021 × 9000 yielding 18189000

= 20001837
