Hi, 

A column of my df looks like

A
10/20/30

40/20
60/10/10/5
80/10

I want to split it such that the last column has the last composition and if there are not enough the middle columns get the 0s. That way my df would look like

A1 A2 A3 A4
10 20 0 30
40 0 0 20
60 10 10 5
80 0 0 10

How can I do that ??

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