185620 divided by 31 
The aim is to understand the frequency of 31 in 185620.

Step 1:
31 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 31

Moving on to step 2:
If we divide 18 by 31, we get 0 and a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Take the next digit (5) from the dividend and append it to 18, then repeat: 185 / 31

On to step 3:
When dividing 185 by 31, we get 5 with a remainder of 30.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 155 from 185 and we're left with 30.
Bring next digit (6) of the dividend behind the 30 and repeat the process: 306 / 31

Advancing to step 4:
The number 31 fits into 306 9 times, leaving a remainder of 27.
Put 9 as the next digit of the answer. 
Result so far: 59.0
Subtract 279 from 306 to get 27.
Fetch the next digit (2) from the dividend, attach it to 27 and continue: 272 / 31

Advancing to step 5:
If we divide 272 by 31, we get 8 and a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 598.0
Subtract 248 from 272 to get 24.
Take the next digit (0) from the dividend and append it to 24, then repeat: 240 / 31

Going ahead to step 6:
If we divide 240 by 31, we get 7 and a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 5987.0
The remainder is 23 after subtracting 217 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
When dividing 230 by 31, we get 7 with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 5987.7
If we take 217 away from 230, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 8:
The number 31 fits into 130 4 times, leaving a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 5987.74
Subtract 124 from 130 to 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.

Advancing to step 9:
If we divide 60 by 31, we get 1 and a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 5987.741
If we subtract 31 from 60, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 10:
The number 31 fits into 290 9 times, leaving a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 5987.7419
If we take 279 away from 290, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 11:
31 can be fit into 110 3 times, resulting in a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 5987.74193
Subtracting 93 from 110 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 12:
The number 31 fits into 170 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 5987.741935
The remainder is 15 after subtracting 155 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 13:
31 goes into 150 4 times with a remainder of 26.
The next digit of our result is 4. 
Result so far: 5987.7419354
The remainder is 26 after subtracting 124 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 14:
31 goes into 260 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 5987.74193548
Subtract 248 from 260 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

In conclusion, the division gives 5987.74193548 with a balance of 1.2e-08.