No problem, we've got 5324 and 3981 to multiply
5324 × 3981 = 3981 × (5324)
+ 3981 × 4 that equals 15924
+ 3981 × 20 producing 79620
+ 3981 × 300 producing 1194300
+ 3981 × 5000 resulting in 19905000

= 21194844
