We divide 21915246 by 591
The aim is to understand the frequency of 591 in 21915246.

On to step 1:
591 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 591

Let's proceed to step 2:
21 divided by 591 is 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Append the next digit (9) from the dividend to 21 and continue with: 219 / 591

Going ahead to step 3:
The number 591 fits into 219 0 times, leaving a remainder of 219.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 219 after subtracting 0 from 219.
Bring next digit (1) of the dividend behind the 219 and repeat the process: 2191 / 591

Going ahead to step 4:
2191 divided by 591 is 3 with a remainder of 418.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 1773 from 2191 to get 418.
Bring next digit (5) of the dividend behind the 418 and repeat the process: 4185 / 591

On to step 5:
If we divide 4185 by 591, we get 7 and a remainder of 48.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
If we take 4137 away from 4185, we end up with 48.
Take the next digit (2) from the dividend and append it to 48, then repeat: 482 / 591

Let's proceed to step 6:
The number 591 fits into 482 0 times, leaving a remainder of 482.
Use 0 as the next digit of our solution. 
Result so far: 370.0
Deduct 0 from 482 and we're left with 482.
Include the next digit (4) from the dividend after 482, then repeat: 4824 / 591

Moving on to step 7:
4824 divided by 591 is 8 with a remainder of 96.
Write down 8 as next digit of the result. 
Result so far: 3708.0
Deduct 4728 from 4824 and we're left with 96.
Append the next digit (6) from the dividend to 96 and continue with: 966 / 591

Let's proceed to step 8:
966 divided by 591 is 1 with a remainder of 375.
The next digit of our result is 1. 
Result so far: 37081.0
Subtract 591 from 966 to get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Step 9:
3750 divided by 591 is 6 with a remainder of 204.
Use 6 as the next digit of our solution. 
Result so far: 37081.6
If we take 3546 away from 3750, we end up with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

On to step 10:
The number 591 fits into 2040 3 times, leaving a remainder of 267.
Record the quotient 3 as the next digit in the result. 
Result so far: 37081.63
If we subtract 1773 from 2040, we get 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Moving on to step 11:
2670 divided by 591 is 4 with a remainder of 306.
Write down 4 as next digit of the result. 
Result so far: 37081.634
If we subtract 2364 from 2670, we get 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Going ahead to step 12:
The number 591 fits into 3060 5 times, leaving a remainder of 105.
Use 5 as the next digit of our solution. 
Result so far: 37081.6345
If we subtract 2955 from 3060, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Going ahead to step 13:
1050 divided by 591 is 1 with a remainder of 459.
Put 1 as the next digit of the answer. 
Result so far: 37081.63451
If we take 591 away from 1050, we end up with 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

Moving on to step 14:
4590 divided by 591 is 7 with a remainder of 453.
Write down 7 as next digit of the result. 
Result so far: 37081.634517
Subtract 4137 from 4590 to get 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

Advancing to step 15:
If we divide 4530 by 591, we get 7 and a remainder of 393.
Write down 7 as next digit of the result. 
Result so far: 37081.6345177
If we subtract 4137 from 4530, we get 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

The final outcome is 37081.6345177, with a leftover of 3.93e-06.