No problem, we've got 4585 and 1690 to multiply
4585 × 1690 = 1690 × (4585)
+ 1690 × 5 what gives us 8450
+ 1690 × 80 resulting in 135200
+ 1690 × 500 producing 845000
+ 1690 × 4000 which equals 6760000

= 7748650
