What is the value of the highlighted digit of 1,283,479

Since there are no highlighted digits, I'll just tell you the value of each digit in the mentioned number.

Basically when reading the value of a digit we start from the right.
Digits from the right to the left are named as follows:
units>no zeros/digits after them
tens> 1 zero/digit after the digit
hundreds> 2 zeros/digits after the digit
thousands> 3 zeros/digits after the digit
ten thousands> 4 zeros/digits after the digit
hundred thousands> 5 zeros/digits after the digit
million> 6 zeros/digits after the digit

Applying this concept to the number in the question, we will find that:
9 represents the units
7 represents the tens
4 represents the hundreds
3 represents the thousands
8 represents the ten thousands
2 represents the hundred thousands
1 represents the million

The number 1,283,479 can be written as:
1000000 + 200000 + 80000 + 3000 + 400 + 70 + 9

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