Galley division

The names galea and batello refer to a boat which the outline of the work was thought to resemble.

However, Lam Lay Yong's research pointed out that the galley method of division originated in the 1st century AD in ancient China.

[1] The galley method writes fewer figures than long division, and results in interesting shapes and pictures as it expands both above and below the initial lines.

Examples of the galley method appear in the 1702 British-American cyphering book written by Thomas Prust (or Priest).

Lam Lay Yong, mathematics professor of National University of Singapore, traced the origin of the galley method to the Sunzi Suanjing written about 400AD.