We look at the division of 192219 by 21 
We want to figure out the number of times 192219 can be divided by 21.

Step 1:
1 divided by 21 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 21

Moving on to step 2:
The number 21 fits into 19 0 times, leaving a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 19 after subtracting 0 from 19.
Bring next digit (2) of the dividend behind the 19 and repeat the process: 192 / 21

Advancing to step 3:
192 divided by 21 is 9 with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 189 from 192, we get 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 21

Going ahead to step 4:
When dividing 32 by 21, we get 1 with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 91.0
If we take 21 away from 32, we end up with 11.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 21

Step 5:
21 can be fit into 111 5 times, resulting in a remainder of 6.
The next digit of our result is 5. 
Result so far: 915.0
Deduct 105 from 111 and we're left with 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 21

Step 6:
When dividing 69 by 21, we get 3 with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 9153.0
The remainder is 6 after subtracting 63 from 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
21 goes into 60 2 times with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 9153.2
Subtract 42 from 60 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 8:
21 can be fit into 180 8 times, resulting in a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 9153.28
If we take 168 away from 180, we end up 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.

Going ahead to step 9:
When dividing 120 by 21, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 9153.285
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.

Moving on to step 10:
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: 9153.2857
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 11:
21 goes into 30 1 times with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 9153.28571
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 12:
When dividing 90 by 21, we get 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 9153.285714
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
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: 9153.2857142
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 14:
21 goes into 180 8 times with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 9153.28571428
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.

The final outcome is 9153.28571428, with a leftover of 1.2e-08.