How to split animation into frames

Hi I am making an animation with Easing style Constant,
but I have a problem, making frames manually is difficult, so I want to initially make the animation smooth, and then divide the animation into frames, remove frames to reduce smoothness and put Easing style Constant, but I have a problem, I do not know how to divide the animation by frames, I will be glad to any help.
PS: I make the animation in the default animation editor.

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