Sir, if the video it is sshown that 1000 - 453 sir if there isn1000000 - 453333, how can we find it

If we write 10,00,000 in the place of 1000, then subtraction can be done from 9 9 9 9 9 10 as:

 9  9  9  9  9  10

-  4  5  3  3  3  3

 5  4  6  6  6  7