Based on survey data from a 2000 study published in the Journal of Quantitative Criminology, U.S. civilians use guns to defend themselves and others from crime at least 989,883 times per year.
https://link.springer.com/article/10.1023/A:1007588410221

Data from a 1993 survey published in the Journal of Criminal Law and Criminology, at least 3.5% of households had members who had used a gun “for self-protection or for the protection of property at home, work, or elsewhere” over the previous five years. This amounts to 1,029,615 such incidents per year and excludes all “military service, police work, or work as a security guard.”
https://scholarlycommons.law.northwestern.edu/cgi/viewcontent.cgi?article=6853&context=jclc

A 1994 survey conducted by the U.S. Centers for Disease Control and Prevention found that Americans use guns to frighten away intruders who are breaking into their homes about 498,000 times per year.
https://pubmed.ncbi.nlm.nih.gov/9591354/

“Almost all national survey estimates indicate that defensive gun uses by victims are at least as common as offensive uses by criminals, with estimates of annual uses ranging from about 500,000 to more than 3 million….”
https://nap.nationalacademies.org/catalog/18319/priorities-for-research-to-reduce-the-threat-of-firearm-related-violence


Don't like the USA as an example? How about Brazil?

After the relaxation on gun laws in 2019 by President Jair Bolsonaro, the number of deaths registered by homicide was 19% lower compared to 2018 (51,558), while in 2019 the registered number was 41,635 being the lowest number of homicide deaths since 2007
https://g1.globo.com/monitor-da-violencia/noticia/2020/02/14/numero-de-assassinatos-cai-19percent-no-brasil-em-2019-e-e-o-menor-da-serie-historica.ghtml