Disclaimer: take this with a grain of salt because I'm in no way experienced, and I don't have impressive numbers. But I did do it, so here it is.
I did it for about 9 months, and my deadlift went from 308 to 396 (Body weight went from 140 to 165). I changed things up after that because my back was not recovering fully.
As for how I approached it, I deadlifted on Tuesday and Friday. Tuseday I would start at about 70% of my max and do a set of 5, add 5kg (11 pounds) and do another set of 5. I would keep adding weight and doing sets of 5 until I couldn't hit 5 in a set. If I felt good, I would drop down and start again. Friday would see me do the same except with sets of 4. Next Tuesday would be sets of 3, and next Friday would be sets of 2. The next Tuesday I would start over with sets of 5, etc.
After those nine months, I changed my loading to kind of a condensed (two weeks into one) 5/3/1 percentages and reps. Again, I deadlifted twice a week, but I only got up to 407 after over three months of lifting and gaining 15 pounds. I was a little disappointed.
I would try deadlifting multiple times a week if I were you, and see how it works out. You won't know until you try it.