It's really quite simple. All you need is a little bit of patience and some basic supplies. First, you'll need to cut off a small piece of the cactus's stem, making sure to leave the cutting intact with the roots. Then, you'll need to prepare a container with a mix of sand, peat, and perlite, as this will provide a good base for the cactus to grow. Finally, you'll need to carefully place the cutting into the container, making sure to bury the roots in the soil. That's all there is to it!