Power query create columns base on date range

Hi dear comuunity.

I have a situation to solve but I could not find  a solution after many attempts .

I need to create one column for each month based on the date range. For example: I have one row with a start date on 15/jan/2019 and end date as 28/dec/2019 that has 120 man days as value. The top row would be the largest date interval.

My desired out put would be 12 columns with the first month day as header and 120 divided by number of months in the date range.

For the others row I need the same calculation considering the correct column position depending on the specific month.

Thanks a lot.