在水晶报表中，根据字段宽度将字符串分成两部分

I am currently working on desktop application. I want to convert currency into words. I did it successfully.Now I have two field objects of crystal report. one with width 4000 twips and another with width 5000 twips. But now I want to break this words in two parts such that first part fits in first object (400 twips) and remaining in second.I am currently working on desktop application.