No problem, we've got 3966 and 4185 to multiply
3966 × 4185 = 4185 × (3966)
+ 4185 × 6 what gives us 25110
+ 4185 × 60 producing 251100
+ 4185 × 900 that equals 3766500
+ 4185 × 3000 yielding 12555000

= 16597710
