A more common system divides chapters according to their titles.

The system divides a piece of project work into four basic stages.

This system divides the hour into 12 units, each five minutes long.

That system divides all knowledge among 21 classes, each signified by a letter.

One common system divides lakes into three zones (see figure).

To deal with that, the new system divides a city into four "chess boards."

Another system divides the aorta with respect to its course and the direction of blood flow.

The systems divide the region covered into multiple geographic areas.

This projected coordinate system divides the world into 60 north and south zones, 6 degrees wide.

For fire calls, the system divides the city into 50 fire-response areas.