What are the steps for manually partitioning Debian?

The steps for manually partitioning during the installation of the Debian operating system are as follows:

1. Choose the manual partition option during the installation process.
2. Establishing the disk partition scheme, including the root directory, swap space, /boot directory, etc.
3. Choose a file system type, such as ext4 or btrfs, for each directory or partition.
4. Specify the size and mount point for each partition.
5. Proceed with the installation process after confirming partition settings.