def to_delimited_s(delim = ',')
      split = self.to_s.split('.')
      split[0] = split.first.reverse.gsub(/(\d{3})/, "\\1#{delim}").reverse
      split.join('.').uncapsulate(',')
    end
def to_delimited_s(delim = ',')
      split = self.to_s.split('.')
      split[0] = split.first.reverse.gsub(/(\d{3})/, "\\1#{delim}").reverse
      split.join('.').uncapsulate(',')
    end
Convert this integer into a string with every three digits separated by a delimiter
 on the left side of the decimal