No problem, we've got 3399 and 6057 to multiply
3399 × 6057 = 6057 × (3399)
+ 6057 × 9 that equals 54513
+ 6057 × 90 that equals 545130
+ 6057 × 300 that is equal 1817100
+ 6057 × 3000 that equals 18171000

= 20587743
