df1 = pd.DataFrame(data = [[1,2,3],[3,4,5]], index = ['a','b'], columns = ['i','ii','iii'])
df2 = pd.DataFrame(data = [[6],[7],[8]], index = ['a','b','c'], columns = ['i'])

df1.div(df2, axis = 'columns')
=> does not work

for i in range(0,2)
    a = df1[df1.columns[i]] / df2
=> summarizes the result in one column