Early Prophase: the DNA in the nucleus starts to form chromosomes.
Late Prophase: The nucleus then breaks and disappears and forms two stringy spindle poles that move to opposite sides of the cell. now the chromosomes are in the middle of the cell without a nucleus. The spindle fibers start to reach out for the chromosomes.
Metaphase: The chromosomes line up in the middles of the cell side by side horizontally. With the spindle f attached to the centromeres. Now the chromosomes are ready to divide.
Anaphase: The chromosomes are now split and getting pulled apart. The spindles are pulling the chromatids closer to their side of the cell. The spindle cords are also pushing the other chromatids and spindle fibers away, so the cell becomes longer.
Telophase: The chromatids are now fully separated and on different sides of the cell. The cell is now slowly separating into two different cells. The chromatids are becoming their own chromosomes again. And there is another membrane forming around them. The spindles disappear, and there is soon going to be two separate cells with a nucleolus as well.
Then there are two separate cells, and the same cells do the same process later on.