Adding In Forward Slashes After text (/)

Hi All,

Im currently working on something and im in need of some help in getting excel to populate a /1 after defiend text, however this should change in each cell such as.


exmple:

(D1)88987

(A4)=IF(D1="","",D1) which inserts 88987 unless blank, however i need this to go as 88987/1
then
(A5)=IF(D1="","",D1) 88987/2

And so forth

I have tired custom format in which i can get it go to 00000/0 which shows 00000/1 however doesnt change the /1 in the next cell and so on.

Does anyone know a way of getting the / to populate and to change the end numeber in each cell.

Thanks in advance

AV1D