No problem, we've got 5584 and 5621 to multiply
5584 × 5621 = 5621 × (5584)
+ 5621 × 4 that equals 22484
+ 5621 × 80 what gives us 449680
+ 5621 × 500 what gives us 2810500
+ 5621 × 5000 that equals 28105000

= 31387664
