classy reclassing

Heyo...

I have just reclassed 822 categories into 8 categories using what I would
call the, uhm, hard way. That is, I used the reclass command and manually
changed 822 numbers. I kept saying to myself...there has to be a better
way, there has to be a better way...

Is there a better way?

(The PI just told me he thinks it would be much better to have 14 categories...

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Details: the data, in this case, is elevation data. Each category in the
original map layer is 1 meter.

Thanks for your help (and sympathy, where appropriate).