I have to divide $2860$ by $3186$. The question gives only $2$ minutes and that division is only half part of question. Now I can't possibly make that division in or less than $2$ minutes by applying traditional methods, which I can't apply on that division anyways.
So anyone can perform below division using faster technique?
Thanks for reading, hoping to get some answers. :)
This is a multiple choice question, with answers $6/7$, $7/8$, $8/9$, and $9/10$.