How to display a spcific number of charcter in one line and take rest to next line.

 Hi,

I am working on XML formating of check where the requirement is to display  "Ciento Treinta y Cuatro Mil Trescientos Cuarenta ************"

on the check.

But due to space unavailability, sometimes the stars are shifting to next line like below,

Ciento Treinta y Cuatro Mil Trescientos Cuarenta

**************************

So I want to display a specific number of character everytime on the first line so that next line will have some letter followed by star. Like,

Ciento Treinta y Cuatro Mil

Trescientos Cuarenta*********.

Can anybody please guide me how to achieve this, which syntax shall i write so that it will consider specific number of characters and then will move to next line.