Help why do I have mold in my microwave? How many times a week do you clean your microwave?

I cleaned my microwave a month ago or two. There are food crumbs stuck inside the microwave all over and I have not cleaned it. In the last place I lived at for 2 years I rarely cleaned the microwave and never got mold. I’m 25 live alone & still learning when it comes to cleaning. Also I don’t have vinegar is it okay to clean it with wipe and lavender dish soap? That’s all I clean it with. I just scrub off the crumbs stuck. Please let me know what I’m doing wrong I use the microwave daily as I have no stove in my studio apartment.

Help why do I have mold in my microwave? How many times a week do you clean your microwave?
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