592057 divided by 21 
We want to figure out the number of times 592057 can be divided by 21.

Step 1:
21 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (9) of the dividend behind the 5 and repeat the process: 59 / 21

Moving on to step 2:
59 divided by 21 is 2 with a remainder of 17.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 42 from 59 to get 17.
Grab the next digit (2) from the dividend, add it to 17, then carry on: 172 / 21

Advancing to step 3:
172 divided by 21 is 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 28.0
If we subtract 168 from 172, we get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 21

Advancing to step 4:
The number 21 fits into 40 1 times, leaving a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 281.0
Subtracting 21 from 40 leaves us with 19.
Fetch the next digit (5) from the dividend, attach it to 19 and continue: 195 / 21

Moving on to step 5:
If we divide 195 by 21, we get 9 and a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 2819.0
The remainder is 6 after subtracting 189 from 195.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 21

Step 6:
When dividing 67 by 21, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 28193.0
The remainder is 4 after subtracting 63 from 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 7:
The number 21 fits into 40 1 times, leaving a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 28193.1
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 8:
190 divided by 21 is 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 28193.19
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.

Step 9:
When dividing 10 by 21, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 28193.19
The remainder is 10 after subtracting 0 from 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 10:
21 goes into 100 4 times with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 28193.1904
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 11:
21 goes into 160 7 times with a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 28193.19047
If we subtract 147 from 160, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 12:
130 divided by 21 is 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 28193.190476
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
When dividing 40 by 21, we get 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 28193.1904761
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.

On to step 14:
21 goes into 190 9 times with a remainder of 1.
The next digit of our result is 9. 
Result so far: 28193.19047619
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.

In conclusion, the division gives 28193.19047619 with a balance of 1e-09.