See https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Series.divmod.html#pandas.Series.divmod and https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Series.rdivmod.html#pandas.Series.rdivmod The documentation incorrectly says that the `divmod` and `rdivmod` returns Series. However, both methods actually return 2-tuples containing two series.