Insert commas suitable in \[678101\,\,318\] international system.

Hint: The following question is based on numbering system and number format. Each digit in a number has a place value in mathematics. The meaning expressed by a digit in a number based on its location in the number is known as place value.

Complete step-by-step answer:
The place value system is important for determining the size of a given numeral. The International Number System (INU) is a system for expressing numbers. Similar intervals are often used in the International numbering scheme to make it easier to read large numbers. The words "ones," "thousands," "millions" etc. are all used here.
We put a comma (,) after each interval of three digits to differentiate the periods. Hence, a comma is used where there are more than three digits. For e.g. the following numbers are in international system:
 \[1\] -One
 \[10\] -Ten
 \[100\] -Hundred
 \[1,000\] -Thousand
 \[10,000\] -Ten Thousand
 \[100,000\] -Hundred Thousand
 \[1,000,000\] -Million
Now we can solve the given question as follows:
Separate every three digits of numbers first-
 \[678\,\,101\,\,318\]
Add comma in the separations:
 \[678,101,318\]
Hence \[678101\,\,318\] can be written in the international system as \[678,101,318\] .
So, the correct answer is “ \[678,101,318\] ”.

Note: There is also another method to express the numbers in contrast to the international system. The Hindu–Arabic numeral system, which was invented by Indian mathematicians, is the most widely used numeral system. The comma is used after every two digits after the first three digits in Indian System. We write millions/hundred thousand after thousands in the international numbering system, but lakhs after thousands in the Indian system. E.g. \[1,000,000\] is one million in the international system which can be written in Indian system as \[10,00,000\] and called as ten lakh. In the given question, \[678101\,\,318\] can be written in Indian System as \[67,81,01,318\] .