No problem, we've got 6667 and 7797 to multiply
6667 × 7797 = 7797 × (6667)
+ 7797 × 7 what gives us 54579
+ 7797 × 60 yielding 467820
+ 7797 × 600 what gives us 4678200
+ 7797 × 6000 that is equal 46782000

= 51982599
