Since 1 Euro is equal to 21844.451037669376 Belarusian Rubles, we could say that n Euros are equal to 21844.451037669376 times n Belarusian Rubles. In other words, we could use the following formula:
Belarusian Rubles = Euros x 21844.451037669376
For example, let's say that we want to convert 2.0 Euros to Belarusian Rubles. Then, we just replace Euros in the abovementioned formula with 2.0:
Belarusian Rubles = 2.0 x 21844.451037669376
That is, 2.0 Euros are equal to 43688.90207533875 Belarusian Rubles.