No problem, we've got 6739 and 7740 to multiply
6739 × 7740 = 7740 × (6739)
+ 7740 × 9 producing 69660
+ 7740 × 30 yielding 232200
+ 7740 × 700 that is equal 5418000
+ 7740 × 6000 yielding 46440000

= 52159860
