Here is a rough out line of the steps. If you buy the kits I am sure they have complete steps in them as well. Likely even a few You Tube videos on the subject. This is for Lutan-F, but other tanning agents follow a similar process.
1. Skin the animal, sooner it is skinned the easier it is and the less chance of hair slipping out.
2. Remove all large chunks of red meat and fat. Invert the ear cartilage (easier watched than described)
3. Salt dry the skins, air drying will work but salt speeds the process and pulls out more of the fluids in the hide.
4. Rehydarate the skins in water then addition of bactericide helps prevent slippage.
5. Put immediately in a pickle solution once the hides are relaxed.
6. Pickling length depends on thickness of animal hide. Generally 3-4 days. Acid comes with the kits.
7. Take a fine wheel on a bench grinder and "buff" off more of the fat, meat and membranes that were still on the skin. Return to the pickle.
8. Neutralize the skin according to the directions on your tanning agent.
9. Mix up the tan and submerge the skins in the tanning solution for 18- 24 hrs depending again on hide thickness.
10. Pull and rinse skins in clean water.
11. OIL THE SKINS WITH A COMMERCIALLY AVAILABLE TANNING OIL (not sun tan oil!

) will come with the kit.
12. allow the skin to start drying, work the leather side over the edge of a counter or piece of plywood as the skin drys and you can re-oil after the skin is 50% dry if you want to.
13. Nice to have a tumbler to put hides in with hardwood sawdust for the last 20% of drying as it will keep working the leather to soften it and also remove oil residue from the hair.