Hello dear, Divorce, also known as dissolution of marriage, is the termination of a marriage or marital union, 
My parents divorced when I was a child. How does the process work?
Divorce laws vary considerably around the world, but in most countries divorce requires the sanction of a court or other authority in a legal process
Are divorces common throughout the world?
Yes it is, divorce process may involve issues of alimony (spousal support), child custody, child visitation / access, parenting time, child support, distribution of property, and division of debt.
It sounds like a very complicated and thorough process. How expensive can this process be?
Depends on the legal practitioner.  In most countries, monogamy is required by law, so divorce allows each former partner to marry another person
How long does the divorce process usually take? I wouldn't want to drag it out any longer than needed.
Well it all depends on the court.Reasons for divorce vary, from sexual incompatibility or lack of independence for one or both spouses  
Well, I guess I will have to judge the merits of my future relationships carefully. I definitely don't want to get involved with any of this.