595170 divided by 21 
Our goal is to divide 595170 by 21.

Moving on to step 1:
If we divide 5 by 21, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 21

Step 2:
The number 21 fits into 59 2 times, leaving a remainder of 17.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 42 from 59 and we're left with 17.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 21

Let's proceed to step 3:
21 goes into 175 8 times with a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
If we take 168 away from 175, we end up with 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 21

On to step 4:
The number 21 fits into 71 3 times, leaving a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 283.0
The remainder is 8 after subtracting 63 from 71.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 21

On to step 5:
The number 21 fits into 87 4 times, leaving a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 2834.0
The remainder is 3 after subtracting 84 from 87.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 21

Let's proceed to step 6:
21 goes into 30 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 28341.0
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 7:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 28341.4
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.

Step 8:
21 can be fit into 60 2 times, resulting in a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 28341.42
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.

Going ahead to step 9:
When dividing 180 by 21, we get 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 28341.428
Subtracting 168 from 180 leaves us 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.

On to step 10:
120 divided by 21 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 28341.4285
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.

Step 11:
21 can be fit into 150 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 28341.42857
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.

Let's proceed to step 12:
21 goes into 30 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 28341.428571
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.

Step 13:
If we divide 90 by 21, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 28341.4285714
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.

On to step 14:
21 can be fit into 60 2 times, resulting in a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 28341.42857142
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.

Our division results in 28341.42857142 with a remaining 1.8e-08.