131303 divided by 39 
The aim is to understand the frequency of 39 in 131303.

On to step 1:
39 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 39

Advancing to step 2:
When dividing 13 by 39, we get 0 with a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Take the next digit (1) from the dividend and append it to 13, then repeat: 131 / 39

Let's proceed to step 3:
131 divided by 39 is 3 with a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 14 after subtracting 117 from 131.
Take the next digit (3) from the dividend and append it to 14, then repeat: 143 / 39

On to step 4:
If we divide 143 by 39, we get 3 and a remainder of 26.
Use 3 as the next digit of our solution. 
Result so far: 33.0
If we subtract 117 from 143, we get 26.
Bring next digit (0) of the dividend behind the 26 and repeat the process: 260 / 39

Let's proceed to step 5:
39 goes into 260 6 times with a remainder of 26.
Record the quotient 6 as the next digit in the result. 
Result so far: 336.0
The remainder is 26 after subtracting 234 from 260.
Bring next digit (3) of the dividend behind the 26 and repeat the process: 263 / 39

Moving on to step 6:
39 goes into 263 6 times with a remainder of 29.
Put 6 as the next digit of the answer. 
Result so far: 3366.0
Deduct 234 from 263 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
When dividing 290 by 39, we get 7 with a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 3366.7
The remainder is 17 after subtracting 273 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 8:
39 can be fit into 170 4 times, resulting in a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 3366.74
If we subtract 156 from 170, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 9:
The number 39 fits into 140 3 times, leaving a remainder of 23.
The next digit of our result is 3. 
Result so far: 3366.743
If we take 117 away from 140, we end up with 23.
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 10:
230 divided by 39 is 5 with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 3366.7435
If we subtract 195 from 230, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 11:
39 can be fit into 350 8 times, resulting in a remainder of 38.
Record the quotient 8 as the next digit in the result. 
Result so far: 3366.74358
Deduct 312 from 350 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 12:
380 divided by 39 is 9 with a remainder of 29.
Record the quotient 9 as the next digit in the result. 
Result so far: 3366.743589
If we subtract 351 from 380, 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.

Let's proceed to step 13:
If we divide 290 by 39, we get 7 and a remainder of 17.
The next digit of our result is 7. 
Result so far: 3366.7435897
If we take 273 away from 290, we end up 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.

Let's proceed to step 14:
170 divided by 39 is 4 with a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 3366.74358974
Deduct 156 from 170 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Our division results in 3366.74358974 with a remaining 1.4e-08.