You must have an inductance and capacitance meter. Without this, it will be impossible in the future. ? Recommend an online M4070 resistance-capacitance-inductance bridge, which is very easy to use.
This value can be calculated by practical and reasonable calculation formula and simple program.
Establish a physical frequency divider with numbers, then hang it outside the box for adjustment, then finalize the design and start the actual welding of the frequency divider.
It needs a lot of data and formulas, as well as the software of electronic aided design company.
How to contact you? You can write to me privately and explain the meaning.