No problem, we've got 6390 and 9010 to multiply
6390 × 9010 = 9010 × (6390)
+ 9010 × 0 giving us 0
+ 9010 × 90 producing 810900
+ 9010 × 300 yielding 2703000
+ 9010 × 6000 producing 54060000

= 57573900
