20721395 ÷ 587 
Our goal is to divide 20721395 by 587.

Advancing to step 1:
The number 587 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 587

Going ahead to step 2:
587 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Take the next digit (7) from the dividend and append it to 20, then repeat: 207 / 587

Let's proceed to step 3:
207 divided by 587 is 0 with a remainder of 207.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 207 leaves us with 207.
Grab the next digit (2) from the dividend, add it to 207, then carry on: 2072 / 587

On to step 4:
2072 divided by 587 is 3 with a remainder of 311.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 311 after subtracting 1761 from 2072.
Bring next digit (1) of the dividend behind the 311 and repeat the process: 3111 / 587

Going ahead to step 5:
3111 divided by 587 is 5 with a remainder of 176.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
Deduct 2935 from 3111 and we're left with 176.
Bring next digit (3) of the dividend behind the 176 and repeat the process: 1763 / 587

Let's proceed to step 6:
1763 divided by 587 is 3 with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 353.0
If we subtract 1761 from 1763, we get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 587

Step 7:
If we divide 29 by 587, we get 0 and a remainder of 29.
Write down 0 as next digit of the result. 
Result so far: 3530.0
The remainder is 29 after subtracting 0 from 29.
Grab the next digit (5) from the dividend, add it to 29, then carry on: 295 / 587

Let's proceed to step 8:
If we divide 295 by 587, we get 0 and a remainder of 295.
Put 0 as the next digit of the answer. 
Result so far: 35300.0
The remainder is 295 after subtracting 0 from 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Advancing to step 9:
2950 divided by 587 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 35300.5
If we subtract 2935 from 2950, we 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.

Let's proceed to step 10:
If we divide 150 by 587, we get 0 and a remainder of 150.
Write down 0 as next digit of the result. 
Result so far: 35300.5
The remainder is 150 after subtracting 0 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 11:
587 can be fit into 1500 2 times, resulting in a remainder of 326.
Use 2 as the next digit of our solution. 
Result so far: 35300.502
Deduct 1174 from 1500 and we're left with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Moving on to step 12:
3260 divided by 587 is 5 with a remainder of 325.
Put 5 as the next digit of the answer. 
Result so far: 35300.5025
If we subtract 2935 from 3260, we get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

On to step 13:
3250 divided by 587 is 5 with a remainder of 315.
The next digit of our result is 5. 
Result so far: 35300.50255
If we take 2935 away from 3250, we end up with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

In conclusion, the division gives 35300.50255 with a balance of 0.000315.