The encoded message is:

A puzzle a day keeps my friends away

The encoded numbers are too large to be ASCII directly, so I assumed they were ASCII values multiplied by another sequence. The divisor sequence turned out to be the prime numbers in order, with an extra 1 added at the beginning:

65 / 1 = 65 = A
64 / 2 = 32 = space
336 / 3 = 112 = p
585 / 5 = 117 = u
854 / 7 = 122 = z
.
.
.

Continuing this for every number gives:

A puzzle a day keeps my friends away