It looks like you are presenting a mathematical expression involving powers and multiplication. However, there seems to be some formatting issues in the expression.
From the given information, it seems you have something similar to:
\( 10^{n} \times 753753 = 75300 \)
To find the missing exponent \( n \), we can solve the equation:
- First, divide both sides by 753753:
\[ 10^{n} = \frac{75300}{753753} \]
- Calculating the right side:
\[ \frac{75300}{753753} \approx 0.1 \]
- Now we can express \( 0.1 \) as a power of 10:
\[ 0.1 = 10^{-1} \]
- Therefore, we have:
\[ 10^{n} = 10^{-1} \]
- This means that:
\[ n = -1 \]
So the missing number is \( n = -1 \). If you have a different interpretation of the numbers or expression, please clarify, and I can assist you further!