Question

What does the 3 in the hundred millionth's place of 8,531,980,112 represent?

Answer 1

There is no `3` in the hundred millions place;
the `3` in the ten millions place represents `3xx10,000,000=30,000,000`

Explanation:

Here is the given number broken down into its components:
#{: (8,"billions or thousand millions (US or British vary)",color(white)("xx")8000000000), (5,"hundred millionths",+color(white)("x")500000000), (color(blue)3,color(blue)("ten millionths"),+color(white)("xx")color(blue)(30000000)), (1,"millionths",+color(white)("xxx")1000000), (9,"hundred thousands",+color(white)("xxxx")900000), (8,"ten thousandths",+color(white)("xxxxx")80000), (0,"thousandths",+color(white)("xxxxxx")0000), (1,"hundredths",+color(white)("xxxxxxx")100), (1,"tens",+color(white)("xxxxxxxx")10), (2,"units",+color(white)("xxxxxxxxx")2), (,,=8531980112) :}#