Mitosis is a method that almost all cells use to make new cells. Mitosis is a part of the cell cycle. First, the cell cycle starts with interphase. That is when the cell makes a copy of its DNA and prepares to divide. Then comes mitosis. Mitosis is broken down into 4 phases: prophase, metaphase, anaphase, and telophase. Prophase is very important because that is when the cell breaks down its nuclear membrance and the chromosomes start to form. The next phase, metaphase, is when the chromosomes line up to the center of the cell. Once the cell has completed that phase, the cell cycle is almost complete. The next phase, anaphase, is when the chromatids split, and it becomes stretched out. This is when the chromosomes are about to split. Then there is telophase. Telophase is when membranes are formed around the chromosomes that are ready to divide. These are all the phases in mitosis.
Then the last stage of the cell cycle is cytokinesis. That is when two new daughter cells form. They have the exact DNA as the original cell. If the cell has a cell wall, there would just be a cell plate between the two. But if the cell doesn't have a cell wall, it just pinches into two seperate cells.