I want to encourage all the students to visit www.khanacademy.org -OR- the free iTunes App Store Khan Academy app for GREAT math tutorial videos. Watching the videos can help students grasp a better understanding of Math concepts and procedures - especially in long multiplication and division! The website and app are easy to navigate and will be so helpful if you can have your child spend a little bit of time on watching some tutorial videos!
Here is a sample video from the 4th grade division menu, just follow the link:
https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-mult-div-topic/cc-4th-division/v/dividing-3-digit-by-1-digit-without-remainder