Here's a breakdown:

* Diploid cells contain two sets of chromosomes.

* Mitosis is a type of cell division that produces two daughter cells that are genetically identical to the parent cell.

Here's how it works:

1. Interphase: The cell grows and replicates its DNA.

2. Prophase: The chromosomes condense and become visible. The nuclear envelope breaks down.

3. Metaphase: The chromosomes line up along the center of the cell.

4. Anaphase: The sister chromatids (identical copies of each chromosome) separate and move to opposite poles of the cell.

5. Telophase: The nuclear envelope reforms around each set of chromosomes, and the cytoplasm divides, forming two daughter cells.

Each daughter cell receives a full set of chromosomes, making them diploid just like the parent cell.