No problem, we've got 6697 and 668 to multiply
6697 × 668 = 668 × (6697)
+ 668 × 7 what gives us 4676
+ 668 × 90 that equals 60120
+ 668 × 600 what gives us 400800
+ 668 × 6000 that is equal 4008000

= 4473596
