I need some help with this. I'm not sure if I did it right, but converting decimal 6.25 to binary, I got 110010011. Is this right?

I was just able to print the homework today, and I have a class tomorrow during my prof's office hours.

I tried to do it with the divide by two method, so I'm not sure if it's right. I need help on how to convert decimal to binary when it has a decimal point. Thanks.