No problem, we've got 1668 and 7406 to multiply
1668 × 7406 = 7406 × (1668)
+ 7406 × 8 what gives us 59248
+ 7406 × 60 what gives us 444360
+ 7406 × 600 yielding 4443600
+ 7406 × 1000 which equals 7406000

= 12353208
