911147835 can be written as thus:
911,147,835
That is nine hundred and eleven million, one hundred and forty seven thousand, eight hundred and thirty five.
Now, ten million is written as thus:
10,000,000
Also, one million is written like this:
1,000,000
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The 1 in the middle represents one million, whilst the 1 in the ten millions place represents ten million.
Ten million is 10 times greater than 1,000,000.
10 x 1,000,000 = 10,000,000