At the beginning, right when she fell in, she was standing a spinning bar. One of her feet was on the bar, but the other got caught in the machinery and took her off balance, so both slipped in. Then she was grasping onto the spinning bar to try and pull herself up, but her foot had already been pulled in and dragged her with it.

I made a couple stick figure drawings over an escalator diagram. i.imgur.c*om/AxlCvao.jpg

looking at those, it probably sucked her feet in ankle first. For some reason that makes it a lot worse to imagine. All of this happening in a few brief seconds, the situation and the full thousands of tons of force of the machine becoming clear just as her foot started to turn at a bad angle.

I have admittedly looked pretty hard for footage of her body being pulled out but can't find it anywhere. I saw a couple of pictures that were suggested to be her but looked like a hoax, with different clothing and all, but maybe they put it on her posthumously because her clothes were shredded. In the event they were real, then it looked like it stopped at her femur.