• Susan Wojcicki provided the garage space where Google was founded in 1998 and later became one of its first employees.

• She rose up the company's ranks, becoming YouTube's CEO in 2014. On Thursday, she announced she's stepping down.

• Here's a glimpse at the life of 54-year-old Susan Wojcicki, who has an estimated net worth of $765 million.

Most landlords only hope their renters pay on time, keep a tidy space, and don't disturb the neighbors.

But Susan Wojcicki's renters — Google cofounders Larry Page and Sergey Brin — ended up offering up a bit more: the chance to become employee No. 16 in 1998 at a young search engine startup called Google.

Of course, it's taken more than this incredible circumstance for Wojcicki to rise in the ranks at Google. From expanding the company's ad business to persuading its founders to purchase an up-and-coming video-sharing service called YouTube, Wojcicki has played a vital role in Google's becoming one of the world's most valuable companies.

She went on to serve as CEO of YouTube for nearly a decade before announcing Thursday that she's stepping down.

As Wojcicki vacates the role, here's a glimpse at her life and rise at Google from employee No. 16 to YouTube's chief:

Susan Wojcicki (pronounced whoa-jit-ski), 54, is a Silicon Valley native.

Source: Forbes

Wojcicki grew up on the Stanford University campus in Palo Alto, California, where her father, Stanley Wojcicki, was chair of the physics department.

Source: USA Today

Wojcicki's mother, Esther Wojcicki, has taught journalism for more than two decades at Palo Alto High School, where she has mentored notable students like Steve Jobs' daughter, Lisa Brennan-Jobs, and the actor James Franco.

Source: Business Insider, SF Gate

Wojcicki is the oldest of three sisters. Her youngest sister, Anne Wojcicki, is the cofounder and CEO of the genetics company, 23andMe. Anne Wojcicki would go on to marry — and later divorce — Google cofounder Sergey Brin.

Sources: Forbes, Forbes