Day 1: Mix 113 grams flour and 113 water together throughly. Cover with cheese cloth securely and add a rubber band around the mixture where the starter reaches.
Day 2: Discard all but 113 grams of starter. Add 113 grams of flour and 113 grams of Luke warm water. Cover with cheese cloth and put a rubber band around the starter.
Day 3: You should start to see your starter growing by today. Additionally, you will start two feedings a day. I would typically do my first one at 8:30 in the morning and then 8:30 at night.
Day 4-6: Repeat day 3.
Day 7: Finally, your starter should be good and developed by now. Discard one last time and feed. If you are leaving your starter on the counter you will still need to feed daily. If you are going to store it in the fridge you will need to take it out once a week and feed.
Notes
I use a food scale and do by grams but if you want to do it in "cups" it is 3/4 cup flour and 3/4 cup water.