How did Allah divide the prayer between Him and His servant?

The Hadith that divides the prayer into two halves between Allah and His servant was narrated by Muslim, Ahmad, and the compilers of the Sunan from Abu Hurairah. The meaning of the Hadith, as clarified by An-Nawawi, is that "prayer" here refers to Al-Fatihah, and it was named as such because prayer is not valid without it. Its division in terms of meaning is that its first half is praise and glorification of Allah, and its second half is supplication and request.