Let's divide 834238 by 21
Let's see how many times 21 fits into 834238.

Going ahead to step 1:
21 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 21

On to step 2:
21 goes into 83 3 times with a remainder of 20.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 63 from 83 leaves us with 20.
Bring next digit (4) of the dividend behind the 20 and repeat the process: 204 / 21

On to step 3:
21 goes into 204 9 times with a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 39.0
Subtracting 189 from 204 leaves us with 15.
Fetch the next digit (2) from the dividend, attach it to 15 and continue: 152 / 21

Moving on to step 4:
The number 21 fits into 152 7 times, leaving a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 397.0
If we subtract 147 from 152, we get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 21

Going ahead to step 5:
The number 21 fits into 53 2 times, leaving a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 3972.0
Subtracting 42 from 53 leaves us with 11.
Append the next digit (8) from the dividend to 11 and continue with: 118 / 21

Step 6:
21 goes into 118 5 times with a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 39725.0
Subtracting 105 from 118 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
When dividing 130 by 21, we get 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 39725.6
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 39725.61
The remainder is 19 after subtracting 21 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 9:
The number 21 fits into 190 9 times, leaving a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 39725.619
The remainder is 1 after subtracting 189 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 10:
When dividing 10 by 21, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 39725.619
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 11:
When dividing 100 by 21, we get 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 39725.61904
Deduct 84 from 100 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 12:
When dividing 160 by 21, we get 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 39725.619047
If we take 147 away from 160, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 13:
The number 21 fits into 130 6 times, leaving a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 39725.6190476
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 14:
21 goes into 40 1 times with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 39725.61904761
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final outcome is 39725.61904761, with a leftover of 1.9e-08.