uh oh. you're a lil scary aren't you. whatever you want to do.
ness has a whole way of doing it that's just pure maths and counting, but i've found this method to be easier with the same results with a little less time taken.
step 1: start with this shape again. this is a 3 grid one just for show.
step 2: put a square around it, made it into a little x of sorts.
step 3: the new more circley lines were placed along those diagonal lines we placed down last step.
step 4: got rid of those diagonal lines and put this grid down. we're gonna put the next lines right in the middle of the grid point.
step 5: right in the middle of each little grid portion, see?
here's a better view without the grid:
step 6:connect two lines in between each segment. how i do it is that i'll do one 90 slice and just do that for the rest of the sides. makes it a bit more even to do that than to do it another way.
step 7: continue putting two lil segments in between the lines you already have until you reach desired smoothness.
step 8: woohoo! you've made a circle! why you'd do it this way i have no idea but woohoo!