When you divide a whole number by something, you're asking:
"How many times can I put this thing into the whole number ?"
If the thing is ' 1 ', then each time you put it into the whole number, it takes up the space of ' 1 ', and you can do that exactly the same whole number of times.
If the thing is more than ' 1 ', then each time you stuff it into the whole number, it takes up the space of more than ' 1 ', so you can't do that as many times as the whole number.
If the thing is less than ' 1 ', then each time you stuff it into the whole number, it only takes up the space of less than ' 1 ', so there'll be enough space in there to let you do that more than the whole number of times. ______________________________________
Another way to look at it:
When you divide a whole number by something, you're asking:
"How many times can I take this thing away from the whole number?"
If the thing is ' 1 ', then each time you take it away from the whole number, you take away exactly ' 1 ', and you can do that exactly the same number of times as the whole number.
If the thing is more than ' 1 ', then each time you take it away from the whole number, you take away more than ' 1 ', so you can't do that as many times as the whole number.
If the thing is less than ' 1 ', then each time you you take it away from the whole number, you only take away a piece of ' 1 ', so you can do that more times than the whole number.