This was the very first in our division worksheets, found in the Year 2 section. These four pages look at division as sharing equally. It's a great idea to do lots of this practically, sharing out sweets, cards, buttons etc and is best done on a 'one for you, one for me' basis to begin with.
There is another concept of division, often called 'grouping', or repeated subtraction, which comes later (how many 5s in 35? style question).
Whilst these pages concentrate on sharing equally between two, there is a danger that children come to think of division as always sharing between two, so it is a good idea to quickly move on to sharing between three or four as soon as they have got the hang of sharing between two.
Worksheets on sharing