A little less than 100. 593 is 7 numbers away from 600, so if you divide 6 by 600 hundred the answer is 100. Since 593 is less than 600, the answer will be less than 100.
A little less than 100, because if you round 593 to 600 and divide by 6, it's 100, so if 593 is a little less than 600, than your answer will be a little less than the answer of 600 divided by 6.
