No problem, we've got 6015 and 6663 to multiply
6015 × 6663 = 6663 × (6015)
+ 6663 × 5 producing 33315
+ 6663 × 10 that equals 66630
+ 6663 × 000 yielding 0
+ 6663 × 6000 that equals 39978000

= 40077945
