Repetitive division problem

Hi!

I am incurring a problem related to a division that has to happen for every week. I collected a dataset of the number of ship arrivals (port calls) per country and per week. This indicator is reported on a weekly basis but I would like to obtain a value for each day of that week by dividing this weekly number uniformly over the week.

As this would be impossible to execute for 100.000 lines manually, I would like to know if there would be a way to automate this by using a formula or VBA.
You can see in the attached document that there is column country, date, port calls 1x per week, per day. Now, the purpose is to go from the 'port calls 1x per week' to the column 'per day' by making use of an efficient and effective way.

Thank you in advance!
Dan