What does it mean?
took me a while to get it all figured out.

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I spent quite a long time to understand everything.

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(it) took me a while  = (the task) required time (significantly long time)

to get it all figured out. = to understand, or sometimes to work out how to make things work (does not alway mean understanding, but sometimes just capability to function)

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I got it now.

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It depends on the context, but I'd say : I spent quite a long time to understand everything.

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What does that mean?