These rules for division are necessarily based on spelling and syllabication.
SPELLING The idea that there is one right way to combine the letters representing a certain sound or group of sounds, that is a word, and that all other ways are wrong and little short of shameful is a comparatively new idea among us.

The English speaking folk held down to a comparatively recent time that any group of letters which approximately represented the sound was amply sufficient as a symbol of the word.

This sort of phonetic spelling was commonly followed, and followed with great freedom.

No obligation was recognized to be consistent.

In ordinary writing, such as letters and the like, it is not unusual to find the same word spelled in a variety of ways in the same document.
The last century has brought about an attempt to standardize spelling into conventional forms any departure from which is regarded as highly derogatory to the writer.