Simplify the given algebraic expression:
$$\frac{437bxaz}{23ab}$$

Given expression:
$$\frac{437bxaz}{23ab}$$
We can rewrite the expression by rearranging the variables in alphabetical order:
$$\frac{437abxz}{23ab}$$
Dividing the numerical coefficients:
$$\frac{437}{23}=19$$
Canceling out the common variables $a$ and $b$ from both the numerator and the denominator:
$$\frac{abxz}{ab}=xz$$
Combining the results, we get:
$$19xz$$