No problem, we've got 5773 and 3579 to multiply
5773 × 3579 = 3579 × (5773)
+ 3579 × 3 that is equal 10737
+ 3579 × 70 what gives us 250530
+ 3579 × 700 that is equal 2505300
+ 3579 × 5000 yielding 17895000

= 20661567
