receive a positive integer number and output each digit separately

Hi I’ve been having issue with this question, wondering how to fix it.
for example I type in 456 and it displays 6 5 4 and I need it to display 4 5 6 instead, does anyone knows how to fix this issue 🙂

var remainder;

while (a!=0) {

   remainder = a % 10;

   a = parseInt(a/10);

   outputObj.innerHTML= outputObj.innerHTML+remainder+" ";

}