Let's divide 828945 by 21
Let's see how many times 21 fits into 828945.

Moving on to step 1:
8 divided by 21 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (2) from the dividend and append it to 8, then repeat: 82 / 21

Let's proceed to step 2:
The number 21 fits into 82 3 times, leaving a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 63 from 82 to get 19.
Append the next digit (8) from the dividend to 19 and continue with: 198 / 21

Advancing to step 3:
21 goes into 198 9 times with a remainder of 9.
The next digit of our result is 9. 
Result so far: 39.0
Subtracting 189 from 198 leaves us with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 21

On to step 4:
If we divide 99 by 21, we get 4 and a remainder of 15.
Write down 4 as next digit of the result. 
Result so far: 394.0
Subtract 84 from 99 to get 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 21

Step 5:
If we divide 154 by 21, we get 7 and a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 3947.0
Deduct 147 from 154 and we're left with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 21

Advancing to step 6:
When dividing 75 by 21, we get 3 with a remainder of 12.
Use 3 as the next digit of our solution. 
Result so far: 39473.0
The remainder is 12 after subtracting 63 from 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
The number 21 fits into 120 5 times, leaving a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 39473.5
Subtracting 105 from 120 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
If we divide 150 by 21, we get 7 and a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 39473.57
If we take 147 away from 150, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 9:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 39473.571
Subtracting 21 from 30 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 10:
The number 21 fits into 90 4 times, leaving a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 39473.5714
Deduct 84 from 90 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 11:
60 divided by 21 is 2 with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 39473.57142
Deduct 42 from 60 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 12:
If we divide 180 by 21, we get 8 and a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 39473.571428
Subtract 168 from 180 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 13:
21 can be fit into 120 5 times, resulting in a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 39473.5714285
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 14:
If we divide 150 by 21, we get 7 and a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 39473.57142857
Subtracting 147 from 150 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final result is 39473.57142857 with a remainder of 3e-09.