Extract All Occurences Of Specific Word

Cell in excel containing large amount of text. Contains the following text one or more times (including the speech marks): "Provide Dwd/Dwl Number: DWD*****"
What I need to do is extract all of the DWD values from this cell, load into an array and dump them into another cell. It's the extraction bit that I need to sort out. In my mind the way that the code should work is:

Find all instances of 'dwd'
For each instance of 'dwd'
check the next/proceding character.

if the character is a space, check the next one
if the character is not a number or space, break and go to the next instance of 'dwd'
if the character is a number add it and the next 5 characters to a temp variable (varTemp)
loop
take the value of varTemp, prepend it with 'dwd' and add it to the running list/array
Loop
Output the full list of DWDs