I'd cut up the print to 180x180x180 as many use brims and other priming around an object. Some also have clamps getting in the way, nibbling from the already limited build volume.
Other than that, I usually try non additive manufacturing first if the size is larger than what my printer can handle and use a CNC or other tools.
I myself wouldn't bother cutting up an object. If someone is crazy enough to print a multi meter object on such a 200mm cubed size printer, it's up to them to cut the object up. Just my 2 cents
The only large prints I've done is with vase mode or perimeter only prints without infill. It would take too much filament and time and if something goes wrong you loose a lot of time and filament.
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Kind regards
Imqqmi
NFAN CoreXY printer:
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reprap.org]