No problem, we've got 6663 and 9957 to multiply
6663 × 9957 = 9957 × (6663)
+ 9957 × 3 yielding 29871
+ 9957 × 60 which equals 597420
+ 9957 × 600 producing 5974200
+ 9957 × 6000 that is equal 59742000

= 66343491
