[chris@pineapple ranges-892828]$ perl ranges -M=9999997 -N=1
 0 : from       0 to 9999997 (9999998)
[chris@pineapple ranges-892828]$ perl ranges -M=9999997 -N=2
 0 : from       0 to 4999998 (4999999)
 1 : from 4999999 to 9999997 (4999999)
[chris@pineapple ranges-892828]$ perl ranges -M=9999997 -N=3
 0 : from       0 to 3333331 (3333332)
 1 : from 3333332 to 6666664 (3333333)
 2 : from 6666665 to 9999997 (3333333)
[chris@pineapple ranges-892828]$ perl ranges -M=9999997 -N=4
 0 : from       0 to 2499998 (2499999)
 1 : from 2499999 to 4999998 (2500000)
 2 : from 4999999 to 7499997 (2499999)
 3 : from 7499998 to 9999997 (2500000)
[chris@pineapple ranges-892828]$ perl ranges -M=9999997 -N=5
 0 : from       0 to 1999998 (1999999)
 1 : from 1999999 to 3999998 (2000000)
 2 : from 3999999 to 5999997 (1999999)
 3 : from 5999998 to 7999997 (2000000)
 4 : from 7999998 to 9999997 (2000000)
[chris@pineapple ranges-892828]$ perl ranges -M=9999997 -N=6
 0 : from       0 to 1666665 (1666666)
 1 : from 1666666 to 3333331 (1666666)
 2 : from 3333332 to 4999998 (1666667)
 3 : from 4999999 to 6666664 (1666666)
 4 : from 6666665 to 8333330 (1666666)
 5 : from 8333331 to 9999997 (1666667)
[chris@pineapple ranges-892828]$ perl ranges -M=9999997 -N=7
 0 : from       0 to 1428570 (1428571)
 1 : from 1428571 to 2857141 (1428571)
 2 : from 2857142 to 4285712 (1428571)
 3 : from 4285713 to 5714283 (1428571)
 4 : from 5714284 to 7142854 (1428571)
 5 : from 7142855 to 8571425 (1428571)
 6 : from 8571426 to 9999997 (1428572)
[chris@pineapple ranges-892828]$ perl ranges -M=9999997 -N=8
 0 : from       0 to 1249998 (1249999)
 1 : from 1249999 to 2499998 (1250000)
 2 : from 2499999 to 3749998 (1250000)
 3 : from 3749999 to 4999998 (1250000)
 4 : from 4999999 to 6249997 (1249999)
 5 : from 6249998 to 7499997 (1250000)
 6 : from 7499998 to 8749997 (1250000)
 7 : from 8749998 to 9999997 (1250000)
[chris@pineapple ranges-892828]$ perl ranges -M=9999997 -N=9
 0 : from       0 to 1111109 (1111110)
 1 : from 1111110 to 2222220 (1111111)
 2 : from 2222221 to 3333331 (1111111)
 3 : from 3333332 to 4444442 (1111111)
 4 : from 4444443 to 5555553 (1111111)
 5 : from 5555554 to 6666664 (1111111)
 6 : from 6666665 to 7777775 (1111111)
 7 : from 7777776 to 8888886 (1111111)
 8 : from 8888887 to 9999997 (1111111)