69128 ÷ 39 
The aim is to understand the frequency of 39 in 69128.

Step 1:
The number 39 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 39

Let's proceed to step 2:
The number 39 fits into 69 1 times, leaving a remainder of 30.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 39 from 69, we get 30.
Take the next digit (1) from the dividend and append it to 30, then repeat: 301 / 39

Moving on to step 3:
The number 39 fits into 301 7 times, leaving a remainder of 28.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Deduct 273 from 301 and we're left with 28.
Grab the next digit (2) from the dividend, add it to 28, then carry on: 282 / 39

Advancing to step 4:
39 can be fit into 282 7 times, resulting in a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 177.0
Subtracting 273 from 282 leaves us with 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 39

Let's proceed to step 5:
39 goes into 98 2 times with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 1772.0
Subtracting 78 from 98 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 6:
200 divided by 39 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 1772.5
Deduct 195 from 200 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 7:
39 can be fit into 50 1 times, resulting in a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 1772.51
If we take 39 away from 50, 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.

Advancing to step 8:
39 goes into 110 2 times with a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 1772.512
Subtract 78 from 110 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
When dividing 320 by 39, we get 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 1772.5128
Deduct 312 from 320 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
When dividing 80 by 39, we get 2 with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 1772.51282
Subtracting 78 from 80 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 11:
39 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 1772.51282
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 12:
The number 39 fits into 200 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 1772.5128205
If we take 195 away from 200, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 13:
If we divide 50 by 39, we get 1 and a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 1772.51282051
If we take 39 away from 50, 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.

The quotient of the division is 1772.51282051, and the remainder is 1.1e-08.