When you scrape the numbers, are they single digits? Or are they already grouped together?
I have not had chance to become familiar with the Regular Expression processing, but I think you would need to either use that to add a delimiter, or you could probably use the string replacement.
I'll try to look into this and update you with more in-depth details.
The numbers are stored on the site like
<div class="number1">1</div>
<div class="number2">2</div>
<div class="number3">3</div>
So I found this method of at least convert string to double, in the variable operate function, which will ease my pain a little bit :)