P39

// In Firefox, press Ctrl+Shift+K then copy, paste and run.

function extractNum(num)
{
    var output = "";

    var length = 0;
    var numTmp = num;
    while(numTmp >= 1)
    {
        length++;
        numTmp /= 10;
    }

    for(var i = length-1; i >= 0; i--)
    {
        var ten = Math.pow(10,i);
        var cur = Math.floor(num / ten) % 10;
        if(cur > 0)
        {
            output += (i < length-1 ? "+" : "")
                + cur + (i > 0 ? "x" + ten : "");
        }
    }

    return output;
}

extractNum(102034);