No problem, we've got 9872 and 2021 to multiply
9872 × 2021 = 2021 × (9872)
+ 2021 × 2 resulting in 4042
+ 2021 × 70 that results in 141470
+ 2021 × 800 which equals 1616800
+ 2021 × 9000 that equals 18189000

= 19951312
