Counting from the right in 23,76,400 :
0 is in the ones place.
0 is in the tens place.
4 is in the hundreds place.
6 is in the thousands place.
7 is in the ten thousands place.
3 is in the lakhs place.
2 is in the ten lakhs place.
Hence, the place value of 6 in 23,76,400 is 6,000.