It's a little hard to see what's going on. Here is a schematic:

This only shows 2 resistors. In the photo, I'm using 2 1kΩ resistors in series to make 2kΩ resistance. The top yellow wire is Vin, R1 is the left most resistor, which is 1kΩ, R2 is the combination of the right 2 resistors, also both 1kΩ. The formula for the math is

As it turned out for my project, it was actually easier and better to buy one of these:

https://www.amazon.com/gp/product/B01CONBSV0

This power supply module takes 4.5V - 12V as input and outputs 3.3v. |

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