Make sure you have JEI (Just Enough Items) installed so you can see the Solderer recipes.
A big amount of iron and quartz is required throughout the mod.
A decent amount of diamonds and gold is also required for some items.
A minimal setup
Step 1: The Controller
Craft the Controller.
The Controller is the "master" of the storage network.
This is the block where you'll be giving Forge Energy to.
Step 2: The Solderer
To make some of the items and blocks in the next step you'll need to craft the Solderer.
The Solderer is the crafting mechanic Refined Storage uses for a bunch of items and blocks.
Make sure the Controller has Forge Energy!
Step 3: Storage and accessing your items
You can craft a higher tier of Storage Disk, but for simplicity sake we're going for a 1k.
Craft a Grid to access your items.
Step 4: Done!
You are now able to insert and extract items in the Grid!
To fully understand all the blocks and items of the mod a readthrough of all the wiki pages is recommended.