We look at the division of 53812 by 39 
The aim is to understand the frequency of 39 in 53812.

Going ahead to step 1:
If we divide 5 by 39, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 39

Advancing to step 2:
The number 39 fits into 53 1 times, leaving a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 39 away from 53, we end up with 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 39

Advancing to step 3:
When dividing 148 by 39, we get 3 with a remainder of 31.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
The remainder is 31 after subtracting 117 from 148.
Bring next digit (1) of the dividend behind the 31 and repeat the process: 311 / 39

Let's proceed to step 4:
The number 39 fits into 311 7 times, leaving a remainder of 38.
The next digit of our result is 7. 
Result so far: 137.0
Subtract 273 from 311 to get 38.
Append the next digit (2) from the dividend to 38 and continue with: 382 / 39

Going ahead to step 5:
When dividing 382 by 39, we get 9 with a remainder of 31.
The next digit of our result is 9. 
Result so far: 1379.0
If we subtract 351 from 382, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 6:
39 can be fit into 310 7 times, resulting in a remainder of 37.
Record the quotient 7 as the next digit in the result. 
Result so far: 1379.7
If we subtract 273 from 310, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
39 goes into 370 9 times with a remainder of 19.
The next digit of our result is 9. 
Result so far: 1379.79
Subtracting 351 from 370 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 8:
39 can be fit into 190 4 times, resulting in a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 1379.794
The remainder is 34 after subtracting 156 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 9:
If we divide 340 by 39, we get 8 and a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 1379.7948
Subtract 312 from 340 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 10:
If we divide 280 by 39, we get 7 and a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 1379.79487
If we subtract 273 from 280, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 11:
If we divide 70 by 39, we get 1 and a remainder of 31.
The next digit of our result is 1. 
Result so far: 1379.794871
Subtract 39 from 70 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 12:
When dividing 310 by 39, we get 7 with a remainder of 37.
Record the quotient 7 as the next digit in the result. 
Result so far: 1379.7948717
Subtracting 273 from 310 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 13:
The number 39 fits into 370 9 times, leaving a remainder of 19.
The next digit of our result is 9. 
Result so far: 1379.79487179
Deduct 351 from 370 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

In conclusion, the division gives 1379.79487179 with a balance of 1.9e-08.