regional manager

A "region" is a certain area of a country, continent, or of the world. The "regional manager" is someone in a company who's in charge of a region:

I'm the regional sales manager for our Asian offices.

a division

A "division" is a large group of people within a company who are managed together. Divisions are larger than departments, which are another kind of grouping in a company.

A division is usually led by a director, a vice president, or some other executive.

I'm hoping (that something will happen)

You usually talk about your hopes for the future with the phrase "I hope ___":

I hope it doesn't rain today.

But sometimes English speakers say "I'm hoping ___" instead. "I'm hoping ___" expresses a little more sense of actively waiting to find out the answer. For example, you might say this if you're trying to sell your house:

I'm hoping that we'll be able to sell it by the end of next month.

You can also say "I'm hoping to ___":

I'm hoping to finish the last chapter over the weekend.

work (one's) way up to (a job)

"Working your way up" to a job means reaching a high position by getting promoted several times.

For example, if someone starts off in a company as an assistant, and after several years becomes a vice president, you would say:

She worked her way up to Vice-President.

or

She worked her way up from an assistant to Vice-President.

eventually (do something)

Doing something "eventually" means doing it after a long period of time:

I eventually finished.

She wasn't sure at first, but I eventually convinced her.

You can also use "eventually" before an entire sentence:

Eventually I want to try to open my own business.