To solve \( 0.4 \div 10^{-6} \):

1. When dividing by a power of 10 with a negative exponent, you can multiply by the reciprocal of that power:
   \[
   0.4 \div 10^{-6} = 0.4 \times 10^{6}
   \]

2. Multiply \( 0.4 \) by \( 10^{6} \):
   \[
   0.4 \times 10^{6} = 400,000
   \]

So, \( 0.4 \div 10^{-6} = 400,000 \).

Would you like to see more details on this or have any questions?

Here are five related questions you might find interesting:
1. What is \( 0.2 \div 10^{-4} \)?
2. How do you simplify \( \frac{5 \times 10^{-3}}{2 \times 10^{-5}} \)?
3. What is the result of multiplying \( 0.5 \times 10^{7} \)?
4. How would you calculate \( 3.6 \times 10^{-2} \times 10^{3} \)?
5. How does dividing by \( 10^{-2} \) affect a number?

**Tip:** When dividing by a negative power of 10, remember that it's equivalent to multiplying by a positive power of 10!

Learn how to solve the division problem 0.4 divided by 10^-6 with a step-by-step solution. This problem covers division with exponents, showing how to convert a division by a negative exponent into multiplication by a positive exponent. Suitable for students in Grades 6-8.

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