I don't know how the software works; do colleges compare the applications against everything ever written, or just against other college application essays?
(The essay he wrote for the competition went before a blind review panel at a government institution, so the essay itself never had his name on it).
The longer the text, the more time it takes to scan it.
You can use a free online plagiarism checker with percentage rate option, which is conducted under different algorithms.
Writing a paper from scratch without copying text parts is not just a demand from professors.
With the help of such writing one may practice language, express thoughts, generate original ideas.
If student learns stealing an idea, they will constantly repeat it in future. If you decided to use certain statement or idea that’s relevant for your research, you must learn how to cite it correctly by stating author, source, publisher, and publication year.
Of course, one can try and check every sentence manually.
Not only you may fail the task but also be restricted from attendance.
These measures are taken to prevent future serious abuses.