Using those dots on the display

[tamasharasztosi]

  digit1 = value % 10 ;
  digit2 = (value / 10) % 10 ;
  digit3 = (value / 100) % 10 ;
  digit4 = (value / 1000) % 10 ;
  
  //Send them to 7 segment displays
  uint8_t numberToPrint[]= {number[digit4],number[digit3],number[digit2],number[digit1]};
  sr.setAll(numberToPrint); 

Hi! I'm using this code and it works fine with integers. What would be the easiest method to display floats with decimal point?