First apply venigar. Depends on how big the stained area is. If its just small then put few glasses of venigar. IF the area is too big use a gallon. Leave for 30 min. If the floor is too dirty you have to brush it. But if its not just wipe it with damp cloth. Then wash the floor with hot water and powder soap. If you prefer to have a shiny floor. Allow the floor to dry for a while, then apply a colorless floorwax. You can buy it at Carrefour. This is a tedious process but a worth one. I usually do this at home once in a month. Goodluck in your homecleaning!