It seems like you're asking to factorize and divide the following expression using factorization techniques:

$66y \left( \sqrt{y} - 5y^3 - \frac{24y^2}{6y} \right) \div 6y(y - 8)$

Let's break this down step by step.

1. Simplify the Inside Expression

First, let's simplify the expression inside the parentheses:

$\sqrt{y} - 5y^3 - \frac{24y^2}{6y}$

1. Simplify the fraction: $\frac{24y^2}{6y} = 4y$

So the expression becomes:

$\sqrt{y} - 5y^3 - 4y$

2. Factorize the Numerator

The expression becomes:

$66y(\sqrt{y} - 5y^3 - 4y)$

Let's check for common factors or factorize the expression inside the parentheses.

Unfortunately, the expression $\sqrt{y} - 5y^3 - 4y$ doesn't easily factorize in a simple way, so let's focus on the division.

3. Simplify the Division

Now, let's simplify the overall expression:

$\frac{66y(\sqrt{y} - 5y^3 - 4y)}{6y(y - 8)}$

1. Cancel the common factor $6y$ from the numerator and denominator: $\frac{66y}{6y} = 11$

So the expression simplifies to:

$11(\sqrt{y} - 5y^3 - 4y) \div (y - 8)$

4. Final Expression

This simplifies the expression as much as possible. So, the result is:

$11 \left( \frac{\sqrt{y} - 5y^3 - 4y}{y - 8} \right)$

Further factorization depends on the specific values of $y$ or context, but generally, this is the most simplified form.

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Would you like more details on any step or a different approach?

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Tip: Always check if an expression can be factored or simplified before performing operations like division. This can often simplify the calculation and reveal patterns.