Given:
810 Mexican pesos
we will convert the given currency into Euros
Given the exchange rates are:
1 MXN= 0.052 USD
1 USD= 0.91 EUR 
So, 
1 MXN = 0.052 * 0.91 EUR
Multiplying both sides by 810
so, 

Rounding to the nearest cent:
So, 
810 MXN = 38.33 EUR