Quick fast smart answer is: something really really small. 45/54.679 million, would also be a correct answer. but you can use long division on this it just isn't much fun. Normal long division setup:

54678987 / 45 but 54 million wont fit so will have to make it fit. (and I really should take the time to learn how to make the equation stuff work, anyway) make room

54678987 / 45.0000000 Add enough zeros that the the 54 million fits

remember to put the decimal point in your answer above the division symbol and start at
.000001....

And if a teacher says you are dumb because you don't

Question

Quick fast smart answer is: something really really small. 45/54.679 million, would also be a correct answer.  but you can use long division on this it just isn't much fun.  Normal long division setup:

54678987 / 45    but 54 million wont fit so will have to make it fit.  (and I really should take the time to learn how to make the equation stuff work, anyway) make room

54678987 / 45.0000000    Add enough zeros that the the 54 million fits

remember to put the decimal point in your answer above the division symbol and start at 
.000001....

And if a teacher says you are dumb because you don't