Every hundred years, a single hair-tip is removed from the cylindrical pit. The total period of time that elapses for emptying it completely is called vyavahāra palyopama. This is just a formal palyopama because its value is under countable years. Removing a single hair-tip every 100 years, pit will get emptied in 4.13 x 1044 x 100 years. Therefore vyavahāra palyopama = 4.13 x 1044 x 100 years.