Why is 12345678, 85263147, etc. always divisible by 9?

From: "TonyVarden" <TonyVarden@xxxxxx>
Date: 19 Feb 2006 06:03:35 -0800

You can arrange the digits from 1 to 8 in any combination & the
resulting number will always be divisible by 9.

ex:
12345678 / 9 = 1371742
85263147 / 9 = 9473683
etc.
Why?

.

Follow-Ups:
- Re: Why is 12345678, 85263147, etc. always divisible by 9?
  - From: marcus_b
- Re: Why is 12345678, 85263147, etc. always divisible by 9?
  - From: larryhammick
- Re: Why is 12345678, 85263147, etc. always divisible by 9?
  - From: Ignacio Larrosa Cañestro

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