We divide 162721 by 78
We want to divide 162721 by 78.

Let's proceed to step 1:
The number 78 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 78

Advancing to step 2:
When dividing 16 by 78, we get 0 with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Append the next digit (2) from the dividend to 16 and continue with: 162 / 78

On to step 3:
162 divided by 78 is 2 with a remainder of 6.
The next digit of our result is 2. 
Result so far: 2.0
If we take 156 away from 162, we end up with 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 78

On to step 4:
The number 78 fits into 67 0 times, leaving a remainder of 67.
Write down 0 as next digit of the result. 
Result so far: 20.0
The remainder is 67 after subtracting 0 from 67.
Append the next digit (2) from the dividend to 67 and continue with: 672 / 78

Let's proceed to step 5:
78 goes into 672 8 times with a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 208.0
If we take 624 away from 672, we end up with 48.
Take the next digit (1) from the dividend and append it to 48, then repeat: 481 / 78

On to step 6:
481 divided by 78 is 6 with a remainder of 13.
Use 6 as the next digit of our solution. 
Result so far: 2086.0
If we subtract 468 from 481, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 7:
78 goes into 130 1 times with a remainder of 52.
Put 1 as the next digit of the answer. 
Result so far: 2086.1
If we take 78 away from 130, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 8:
78 can be fit into 520 6 times, resulting in a remainder of 52.
Use 6 as the next digit of our solution. 
Result so far: 2086.16
Subtract 468 from 520 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 9:
520 divided by 78 is 6 with a remainder of 52.
Record the quotient 6 as the next digit in the result. 
Result so far: 2086.166
If we subtract 468 from 520, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final result is 2086.166 with a remainder of 0.0052.