We look at the division of 436181 by 31 
The aim is to understand the frequency of 31 in 436181.

Advancing to step 1:
31 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 31

Moving on to step 2:
The number 31 fits into 43 1 times, leaving a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 31 from 43, we get 12.
Take the next digit (6) from the dividend and append it to 12, then repeat: 126 / 31

Going ahead to step 3:
When dividing 126 by 31, we get 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtracting 124 from 126 leaves us with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 31

Let's proceed to step 4:
If we divide 21 by 31, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 140.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 31

Going ahead to step 5:
218 divided by 31 is 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 1407.0
If we take 217 away from 218, we end up with 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 31

Advancing to step 6:
The number 31 fits into 11 0 times, leaving a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 14070.0
If we subtract 0 from 11, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
31 can be fit into 110 3 times, resulting in a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 14070.3
If we subtract 93 from 110, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 8:
When dividing 170 by 31, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 14070.35
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.

Step 9:
When dividing 150 by 31, we get 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 14070.354
Deduct 124 from 150 and we're left with 26.
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 10:
If we divide 260 by 31, we get 8 and a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 14070.3548
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.

Moving on to step 11:
120 divided by 31 is 3 with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 14070.35483
If we take 93 away from 120, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 12:
31 can be fit into 270 8 times, resulting in a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 14070.354838
If we subtract 248 from 270, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 13:
The number 31 fits into 220 7 times, leaving a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 14070.3548387
If we take 217 away from 220, 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.

Moving on to step 14:
When dividing 30 by 31, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 14070.3548387
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

In conclusion, the division gives 14070.3548387 with a balance of 3e-08.