Answer:
8 - ten million's place
Explanation:
We are given the following figure and we are to determine whether which digit in it is in the ten-million's place:

6 ---> unit's place
1 ---> ten's place
3 ---> hundred's place
5 ---> thousand's place
4 ---> ten thousand's place
2 ---> lac's place
0 ---> one million's place
8 ---> ten million's place