No problem, we've got 5741 and 3623 to multiply
5741 × 3623 = 3623 × (5741)
+ 3623 × 1 what gives us 3623
+ 3623 × 40 yielding 144920
+ 3623 × 700 giving us 2536100
+ 3623 × 5000 producing 18115000

= 20799643
