We look at the division of 98942 by 21 
Let's see how many times 21 fits into 98942.

Let's proceed to step 1:
21 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 21

On to step 2:
When dividing 98 by 21, we get 4 with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 14 after subtracting 84 from 98.
Fetch the next digit (9) from the dividend, attach it to 14 and continue: 149 / 21

Let's proceed to step 3:
The number 21 fits into 149 7 times, leaving a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 47.0
The remainder is 2 after subtracting 147 from 149.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 21

Advancing to step 4:
21 can be fit into 24 1 times, resulting in a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 471.0
Subtracting 21 from 24 leaves us with 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 21

Advancing to step 5:
The number 21 fits into 32 1 times, leaving a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 4711.0
If we subtract 21 from 32, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 6:
110 divided by 21 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 4711.5
Subtract 105 from 110 to get 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 7:
If we divide 50 by 21, we get 2 and a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 4711.52
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 8:
21 can be fit into 80 3 times, resulting in a remainder of 17.
The next digit of our result is 3. 
Result so far: 4711.523
If we take 63 away from 80, we end up 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 9:
The number 21 fits into 170 8 times, leaving a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 4711.5238
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.

Advancing to step 10:
When dividing 20 by 21, we get 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 4711.5238
If we take 0 away from 20, we end up 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.

Step 11:
21 can be fit into 200 9 times, resulting in a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 4711.523809
If we subtract 189 from 200, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 12:
When dividing 110 by 21, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 4711.5238095
Subtracting 105 from 110 leaves us 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.

Advancing to step 13:
When dividing 50 by 21, we get 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 4711.52380952
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.

The final result is 4711.52380952 with a remainder of 8e-09.