We look at the division of 39100599 by 69 
The aim is to understand the frequency of 69 in 39100599.

On to step 1:
The number 69 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 69

Moving on to step 2:
When dividing 39 by 69, we get 0 with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Bring next digit (1) of the dividend behind the 39 and repeat the process: 391 / 69

Advancing to step 3:
The number 69 fits into 391 5 times, leaving a remainder of 46.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 345 from 391 to get 46.
Grab the next digit (0) from the dividend, add it to 46, then carry on: 460 / 69

Step 4:
If we divide 460 by 69, we get 6 and a remainder of 46.
Write down 6 as next digit of the result. 
Result so far: 56.0
The remainder is 46 after subtracting 414 from 460.
Grab the next digit (0) from the dividend, add it to 46, then carry on: 460 / 69

Advancing to step 5:
If we divide 460 by 69, we get 6 and a remainder of 46.
Write down 6 as next digit of the result. 
Result so far: 566.0
Subtracting 414 from 460 leaves us with 46.
Append the next digit (5) from the dividend to 46 and continue with: 465 / 69

Moving on to step 6:
If we divide 465 by 69, we get 6 and a remainder of 51.
Write down 6 as next digit of the result. 
Result so far: 5666.0
Subtracting 414 from 465 leaves us with 51.
Bring next digit (9) of the dividend behind the 51 and repeat the process: 519 / 69

On to step 7:
69 goes into 519 7 times with a remainder of 36.
Use 7 as the next digit of our solution. 
Result so far: 56667.0
If we subtract 483 from 519, we get 36.
Include the next digit (9) from the dividend after 36, then repeat: 369 / 69

Going ahead to step 8:
69 goes into 369 5 times with a remainder of 24.
Record the quotient 5 as the next digit in the result. 
Result so far: 566675.0
If we subtract 345 from 369, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 9:
69 goes into 240 3 times with a remainder of 33.
Put 3 as the next digit of the answer. 
Result so far: 566675.3
If we take 207 away from 240, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 10:
69 can be fit into 330 4 times, resulting in a remainder of 54.
Put 4 as the next digit of the answer. 
Result so far: 566675.34
Subtract 276 from 330 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 11:
69 can be fit into 540 7 times, resulting in a remainder of 57.
Write down 7 as next digit of the result. 
Result so far: 566675.347
Deduct 483 from 540 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 12:
The number 69 fits into 570 8 times, leaving a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 566675.3478
Subtracting 552 from 570 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 13:
When dividing 180 by 69, we get 2 with a remainder of 42.
Put 2 as the next digit of the answer. 
Result so far: 566675.34782
If we subtract 138 from 180, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 14:
420 divided by 69 is 6 with a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 566675.347826
Subtract 414 from 420 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.

Going ahead to step 15:
69 can be fit into 60 0 times, resulting in a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 566675.347826
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 16:
69 goes into 600 8 times with a remainder of 48.
The next digit of our result is 8. 
Result so far: 566675.34782608
The remainder is 48 after subtracting 552 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 566675.34782608, with a leftover of 4.8e-08.