Before drilling division, check the foundation. Time your child on 40 mixed multiplication facts. If they finish in 90 seconds with at least 95 percent accuracy, you are ready. If not, build that first. See multiplication fact fluency for the multiplication routine.
Every multiplication fact unlocks two division facts. 6 × 7 = 42 instantly gives you 42 ÷ 6 = 7 and 42 ÷ 7 = 6. That cuts the learning load in half before you start.
Practical move: every time you introduce a multiplication fact in review, introduce both division partners at the same time. Treat them as one unit, not three separate facts.
Multiplication warm-up. 15 to 20 mixed multiplication facts. Keeps the foundation warm.
Division focus. The 5 to 8 slow division facts from yesterday. Both inverses for each fact family.
Mixed sprint. 25 to 30 mixed division facts including last week's slow ones.
The same multiplication culprits show up in division. 56÷7 and 72÷8 stay slow longest. Spaced repetition is the only fix.
Some kids get muddled on which number is being divided. Use a quick visual: dividend on top of the bar, divisor below.
0÷n=0 is fluent fast. n÷0 is undefined. Teach both rules early to avoid confusion later.
Mixed-set, 40 facts, all single-digit divisors. Target: 90 seconds with 95 percent or better accuracy. If your child hits that, they are ready for multi-digit division and long division. If not, the slow facts on the test are exactly what to focus on next session.
For the underlying method, see math fact fluency and spaced repetition for math facts. To start practicing, jump into a 5-minute Training session.

Common Core targets fluency in division within 100 by the end of 3rd grade, alongside multiplication. In practice, division fluency usually lags multiplication by 4 to 6 weeks because it depends on multiplication recall.
Teach them as inverse multiplication. If your child knows 6×7=42, they should also know 42÷6=7 and 42÷7=6. Fact families do most of the work.
Two reasons. First, division has fewer patterns and tricks. Second, it forces working memory to invert a known fact, which is slower than direct recall until enough reps stack up.
If multiplication is already fluent, 4 to 6 weeks of 5-minute daily practice is enough for most kids to reach division fluency within 100.