While reading the book, Nine Algorithms That Changed the Future (amazon link), I came upon the following sentence:
I know I am laboring this point, but the reason for going through this example in excruciating detail is to understand exactly what information is used to arrive at this answer.
I believe that is an incorrect use of the word laboring and the author most likely intended to use belaboring, but I'm curious if the word laboring can be used in this way.
Dictionary.com gives belaboring as:
to explain, worry about, or work at (something) repeatedly or more than is necessary: He kept belaboring the point long after we had agreed.