No problem, we've got 9784 and 2031 to multiply
9784 × 2031 = 2031 × (9784)
+ 2031 × 4 giving us 8124
+ 2031 × 80 that equals 162480
+ 2031 × 700 which equals 1421700
+ 2031 × 9000 which equals 18279000

= 19871304
