We're dividing 142769 by 21 
Let's see how many times 21 fits into 142769.

Let's proceed to step 1:
21 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 21

Step 2:
If we divide 14 by 21, we get 0 and a remainder of 14.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 14 after subtracting 0 from 14.
Take the next digit (2) from the dividend and append it to 14, then repeat: 142 / 21

Let's proceed to step 3:
The number 21 fits into 142 6 times, leaving a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 126 from 142, we get 16.
Append the next digit (7) from the dividend to 16 and continue with: 167 / 21

Let's proceed to step 4:
21 goes into 167 7 times with a remainder of 20.
Record the quotient 7 as the next digit in the result. 
Result so far: 67.0
Subtracting 147 from 167 leaves us with 20.
Take the next digit (6) from the dividend and append it to 20, then repeat: 206 / 21

Going ahead to step 5:
If we divide 206 by 21, we get 9 and a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 679.0
If we subtract 189 from 206, we get 17.
Append the next digit (9) from the dividend to 17 and continue with: 179 / 21

Advancing to step 6:
179 divided by 21 is 8 with a remainder of 11.
Put 8 as the next digit of the answer. 
Result so far: 6798.0
Subtracting 168 from 179 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 6798.5
The remainder is 5 after subtracting 105 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
If we divide 50 by 21, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 6798.52
The remainder is 8 after subtracting 42 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
If we divide 80 by 21, we get 3 and a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 6798.523
Deduct 63 from 80 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 10:
If we divide 170 by 21, we get 8 and a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 6798.5238
If we subtract 168 from 170, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 11:
If we divide 20 by 21, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 6798.5238
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 12:
200 divided by 21 is 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 6798.523809
The remainder is 11 after subtracting 189 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 13:
When dividing 110 by 21, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 6798.5238095
Deduct 105 from 110 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 14:
When dividing 50 by 21, we get 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 6798.52380952
Subtract 42 from 50 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 6798.52380952 with a balance of 8e-09.