No problem, we've got 9604 and 1981 to multiply
9604 × 1981 = 1981 × (9604)
+ 1981 × 4 what gives us 7924
+ 1981 × 00 producing 0
+ 1981 × 600 that equals 1188600
+ 1981 × 9000 resulting in 17829000

= 19025524
