We look at the division of 834464 by 21 
We want to divide 834464 by 21.

Going ahead to step 1:
21 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 21

On to step 2:
21 can be fit into 83 3 times, resulting in a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 63 from 83 and we're left with 20.
Bring next digit (4) of the dividend behind the 20 and repeat the process: 204 / 21

Moving on to step 3:
21 goes into 204 9 times with a remainder of 15.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
The remainder is 15 after subtracting 189 from 204.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 21

Moving on to step 4:
The number 21 fits into 154 7 times, leaving a remainder of 7.
The next digit of our result is 7. 
Result so far: 397.0
Deduct 147 from 154 and we're left with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 21

Moving on to step 5:
21 goes into 76 3 times with a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 3973.0
Subtracting 63 from 76 leaves us with 13.
Bring next digit (4) of the dividend behind the 13 and repeat the process: 134 / 21

Let's proceed to step 6:
21 can be fit into 134 6 times, resulting in a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 39736.0
If we subtract 126 from 134, we 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.

Step 7:
80 divided by 21 is 3 with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 39736.3
Subtracting 63 from 80 leaves us 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.

On to step 8:
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: 39736.38
Subtracting 168 from 170 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 9:
If we divide 20 by 21, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 39736.38
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 10:
The number 21 fits into 200 9 times, leaving a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 39736.3809
Deduct 189 from 200 and we're left 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 11:
If we divide 110 by 21, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 39736.38095
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 12:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 39736.380952
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.

Going ahead to step 13:
21 can be fit into 80 3 times, resulting in a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 39736.3809523
The remainder is 17 after subtracting 63 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 14:
21 goes into 170 8 times with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 39736.38095238
Subtract 168 from 170 to 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.

In conclusion, the division gives 39736.38095238 with a balance of 2e-09.