To determine what the value of the underlined digit (2) is, we need to determine what value each number is.
In 768,236, the first number, 7, is in the hundred-thousands (100,000) place.
The second number, 6, is in the ten-thousands (10,000) place.
The third number, 8, is in the thousands (1,000) place.
The fourth number, 2, is in the hundreds (100) place.
Your value is 200.
I hope this helps!