This question already has an answer here:
Using KOMA report, figures seem to default to numbering from 0.1, 0.2, 0.3... I'd like these to start from 1,2,3 instead.
Related, but don't answer my question:
Edit: This question: Continuous numbering of figures and tables, was identified as a solution to my duplicate. While that does look like a good answer, I've already successfully implemented the answer below. It is different and does not require using another package. As such, I prefer it.