Tutorials/Nether hub

Introduction
Usually when people have outposts in other biomes, they travel there via Minecart.

But by using math, you can get there via Nether Portal!

Materials
2 Nether Portals

A way to light the Portals

And These Facts
X- Increases East, Decreases West.

Y- Increases By Height, Decreases By Depth.

Z- Increases South, Decreases North.

The Nether's Terrain Generation is Overworld / (Divided By) 8

e.g, X: 100 (Overworld) X: 12.5 (Nether)

The Nether generates portals by Chunks.

Steps
1. If you don't have one already have one, make a portal ( We'll call this one Portal A). Go through it.

2. Find your desired location you want to travel to.

3. Make Another portal there (We'll call this one Portal B.), but  DON'T GO IN IT YET. Mark the portal's coordinates, then divide it by 8.

4. Go through Portal A & head to those divided coordinates. Make a portal there. If you did it right, you'll go through Portal B!

Note: This doesn't make sense. According to the material, 2 portals are required but these steps require 3. And if I go into Portal A in Step 1. I'll be in the Nether. How then can I do Step 2? Please clarify. Thanks.