998023 ÷ 21 
We're looking to find how many times 21 goes into 998023.

Step 1:
21 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 21

Moving on to step 2:
21 goes into 99 4 times with a remainder of 15.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 15 after subtracting 84 from 99.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 21

Advancing to step 3:
21 can be fit into 158 7 times, resulting in a remainder of 11.
The next digit of our result is 7. 
Result so far: 47.0
Subtracting 147 from 158 leaves us with 11.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 21

On to step 4:
The number 21 fits into 110 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 475.0
The remainder is 5 after subtracting 105 from 110.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 21

Going ahead to step 5:
21 goes into 52 2 times with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 4752.0
If we take 42 away from 52, we end up with 10.
Fetch the next digit (3) from the dividend, attach it to 10 and continue: 103 / 21

On to step 6:
21 can be fit into 103 4 times, resulting in a remainder of 19.
Write down 4 as next digit of the result. 
Result so far: 47524.0
Subtract 84 from 103 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 7:
190 divided by 21 is 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 47524.9
If we take 189 away from 190, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 8:
When dividing 10 by 21, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 47524.9
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
100 divided by 21 is 4 with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 47524.904
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
160 divided by 21 is 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 47524.9047
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.

Step 11:
130 divided by 21 is 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 47524.90476
If we take 126 away from 130, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 12:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 47524.904761
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.

Let's proceed to step 13:
The number 21 fits into 190 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 47524.9047619
Subtracting 189 from 190 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 14:
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: 47524.9047619
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 47524.9047619, and the remainder is 1e-08.