We divide 198411 by 21
Let's see how many times 21 fits into 198411.

Going ahead to step 1:
21 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 21

On to step 2:
If we divide 19 by 21, we get 0 and a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 21

Moving on to step 3:
When dividing 198 by 21, we get 9 with a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we subtract 189 from 198, we get 9.
Bring next digit (4) of the dividend behind the 9 and repeat the process: 94 / 21

Going ahead to step 4:
21 goes into 94 4 times with a remainder of 10.
The next digit of our result is 4. 
Result so far: 94.0
The remainder is 10 after subtracting 84 from 94.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 21

Moving on to step 5:
21 can be fit into 101 4 times, resulting in a remainder of 17.
The next digit of our result is 4. 
Result so far: 944.0
If we subtract 84 from 101, we get 17.
Bring next digit (1) of the dividend behind the 17 and repeat the process: 171 / 21

Step 6:
If we divide 171 by 21, we get 8 and a remainder of 3.
The next digit of our result is 8. 
Result so far: 9448.0
If we take 168 away from 171, 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 7:
21 goes into 30 1 times with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 9448.1
Deduct 21 from 30 and we're left 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.

Let's proceed to step 8:
The number 21 fits into 90 4 times, leaving a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 9448.14
Subtracting 84 from 90 leaves us 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.

Let's proceed to step 9:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 9448.142
Subtracting 42 from 60 leaves us 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.

Step 10:
21 goes into 180 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 9448.1428
Deduct 168 from 180 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 11:
When dividing 120 by 21, we get 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 9448.14285
Subtract 105 from 120 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 12:
When dividing 150 by 21, we get 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 9448.142857
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.

Advancing to step 13:
21 can be fit into 30 1 times, resulting in a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 9448.1428571
The remainder is 9 after subtracting 21 from 30.
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 14:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 9448.14285714
If we take 84 away from 90, we end up 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.

The quotient of the division is 9448.14285714, and the remainder is 6e-09.