Subtract by the Vedic method

Method:

1. If the subtrahend cannot be subtracted from the minuend then by adding the best friend digit of the subtrahend in the minuend.

2. Write the sum below at the place of the remainder.

3. Put a dot below digit prior to the minuend digit.

4. By repeating this, the complete remainder can be found in the last.

Ans: 1863