Cell division is a process whereby the cells of a living organism is duplicated or replicate itself. The major celldivision in living organisms is mitosis.
Mitosis is the process whereby a single cell produces two daughter cells with the same genetic content.
This means that when a cell is damaged, cell division is the process employed by the cell to replace such cells.
Therefore, one reason cells divide is to replace damage cells.
and it's name is Hydronium. Hope this helps :)