No problem, we've got 6791 and 6404 to multiply
6791 × 6404 = 6404 × (6791)
+ 6404 × 1 what gives us 6404
+ 6404 × 90 producing 576360
+ 6404 × 700 yielding 4482800
+ 6404 × 6000 resulting in 38424000

= 43489564
