Well.... here is how you do it.
You will need to wash the bills in petroleum ether. This way they dry out fast so you can take them to a bank and get more. Don't take them back to the same bank though, it gets suspicious. Once you have done this with about two million dollars worth of bills your ether will be pretty dark. In addition to cocaine, there will be meth, thc, grease, dead skin and other contaminants. Mix this with an equal part of distilled water adjusted to a ph of 2. Shake repeatedly. Put the mixture into a separation column and pull off the bottom layer of water. Do this several times to the ether mixture. Now take all the water and adjust the PH to around 12 using sodium hydroxide. Put it in the refrigerator, do not freeze. After about a day you will see a material precipitate on the bottom. Carefully remove the water and then collect the precipitate with filter paper. Let dry. Mix this into about 250 ml of Heptane. Place this mixture into a three foot silica column. Continually sample the output from the column using a gas chromatagraph until you have found the layer with the cocaine. Allow that liquid to evaporate. Wash several times with the polar solvent of your choice. Congratulations you now have a quarter gram of pure cocaine for your efforts.
You will need to wash the bills in petroleum ether. This way they dry out fast so you can take them to a bank and get more. Don't take them back to the same bank though, it gets suspicious. Once you have done this with about two million dollars worth of bills your ether will be pretty dark. In addition to cocaine, there will be meth, thc, grease, dead skin and other contaminants. Mix this with an equal part of distilled water adjusted to a ph of 2. Shake repeatedly. Put the mixture into a separation column and pull off the bottom layer of water. Do this several times to the ether mixture. Now take all the water and adjust the PH to around 12 using sodium hydroxide. Put it in the refrigerator, do not freeze. After about a day you will see a material precipitate on the bottom. Carefully remove the water and then collect the precipitate with filter paper. Let dry. Mix this into about 250 ml of Heptane. Place this mixture into a three foot silica column. Continually sample the output from the column using a gas chromatagraph until you have found the layer with the cocaine. Allow that liquid to evaporate. Wash several times with the polar solvent of your choice. Congratulations you now have a quarter gram of pure cocaine for your efforts.