Final answer:
The question appears to relate to a literary work but lacks sufficient context to provide a definite answer regarding the partnership and earnings of Debray and Madame Danglars, as it seems to refer to fictional characters without citing a specific text.
Step-by-step explanation:
Partnership or financial dealings between Debray and Madame Danglars within any canonical text, therefore providing a factual answer in terms of how long they had been partners or how much money they made is not possible. Nevertheless, to address the style of question, which seems to be inspired by characters from classic literature, we can deduce that it refers to a scenario within a work of fiction.
In literature, partnerships and their outcomes such as profits or losses are often intricate plot points that could have significant bearings on the narratives. If Debray and Madame Danglars are indeed characters in a novel, their partnership duration and financial success would depend entirely on the context provided within the story.