We look at the division of 5971507 by 231 
The aim is to understand the frequency of 231 in 5971507.

Going ahead to step 1:
When dividing 5 by 231, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
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 / 231

Going ahead to step 2:
231 goes into 59 0 times with a remainder of 59.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 59 leaves us with 59.
Append the next digit (7) from the dividend to 59 and continue with: 597 / 231

Going ahead to step 3:
The number 231 fits into 597 2 times, leaving a remainder of 135.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 462 from 597, we get 135.
Bring next digit (1) of the dividend behind the 135 and repeat the process: 1351 / 231

On to step 4:
231 goes into 1351 5 times with a remainder of 196.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
Deduct 1155 from 1351 and we're left with 196.
Fetch the next digit (5) from the dividend, attach it to 196 and continue: 1965 / 231

Advancing to step 5:
1965 divided by 231 is 8 with a remainder of 117.
The next digit of our result is 8. 
Result so far: 258.0
If we take 1848 away from 1965, we end up with 117.
Include the next digit (0) from the dividend after 117, then repeat: 1170 / 231

Let's proceed to step 6:
When dividing 1170 by 231, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 2585.0
Subtract 1155 from 1170 to get 15.
Append the next digit (7) from the dividend to 15 and continue with: 157 / 231

Let's proceed to step 7:
If we divide 157 by 231, we get 0 and a remainder of 157.
Put 0 as the next digit of the answer. 
Result so far: 25850.0
If we take 0 away from 157, we end up with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Advancing to step 8:
231 goes into 1570 6 times with a remainder of 184.
The next digit of our result is 6. 
Result so far: 25850.6
If we subtract 1386 from 1570, we get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Going ahead to step 9:
The number 231 fits into 1840 7 times, leaving a remainder of 223.
Use 7 as the next digit of our solution. 
Result so far: 25850.67
If we take 1617 away from 1840, we end up with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

On to step 10:
When dividing 2230 by 231, we get 9 with a remainder of 151.
Record the quotient 9 as the next digit in the result. 
Result so far: 25850.679
Subtract 2079 from 2230 to get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Step 11:
231 goes into 1510 6 times with a remainder of 124.
Record the quotient 6 as the next digit in the result. 
Result so far: 25850.6796
If we subtract 1386 from 1510, we get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Moving on to step 12:
1240 divided by 231 is 5 with a remainder of 85.
The number 5 becomes the next digit in our result. 
Result so far: 25850.67965
The remainder is 85 after subtracting 1155 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 13:
850 divided by 231 is 3 with a remainder of 157.
The number 3 becomes the next digit in our result. 
Result so far: 25850.679653
If we subtract 693 from 850, we get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

On to step 14:
If we divide 1570 by 231, we get 6 and a remainder of 184.
Put 6 as the next digit of the answer. 
Result so far: 25850.6796536
Subtract 1386 from 1570 to get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 15:
1840 divided by 231 is 7 with a remainder of 223.
Put 7 as the next digit of the answer. 
Result so far: 25850.67965367
The remainder is 223 after subtracting 1617 from 1840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

The quotient of the division is 25850.67965367, and the remainder is 2.23e-07.