It’s very simple. Just use the ‘To Text (integer)’ node. Hit the down arrow to expand the node, then type 2, 3, or 4 (or however many numbers you want) in the 'Minimum Integral Digits box. Whallah! You now have preceding Zero’s on your single digits.
So if you type 3 in the box, this will turn 0 into 000 and 32 into 032 etc.
