We divide 351688 by 69
The aim is to understand the frequency of 69 in 351688.

Advancing to step 1:
When dividing 3 by 69, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 69

On to step 2:
69 can be fit into 35 0 times, resulting in a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 35 leaves us with 35.
Fetch the next digit (1) from the dividend, attach it to 35 and continue: 351 / 69

On to step 3:
The number 69 fits into 351 5 times, leaving a remainder of 6.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 345 from 351 to get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 69

Let's proceed to step 4:
69 can be fit into 66 0 times, resulting in a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 50.0
Subtracting 0 from 66 leaves us with 66.
Include the next digit (8) from the dividend after 66, then repeat: 668 / 69

Let's proceed to step 5:
69 goes into 668 9 times with a remainder of 47.
The number 9 becomes the next digit in our result. 
Result so far: 509.0
The remainder is 47 after subtracting 621 from 668.
Append the next digit (8) from the dividend to 47 and continue with: 478 / 69

On to step 6:
The number 69 fits into 478 6 times, leaving a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 5096.0
Subtract 414 from 478 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 7:
69 goes into 640 9 times with a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 5096.9
If we take 621 away from 640, we end up 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.

On to step 8:
190 divided by 69 is 2 with a remainder of 52.
Record the quotient 2 as the next digit in the result. 
Result so far: 5096.92
Deduct 138 from 190 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 9:
The number 69 fits into 520 7 times, leaving a remainder of 37.
Record the quotient 7 as the next digit in the result. 
Result so far: 5096.927
Subtract 483 from 520 to 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.

Going ahead to step 10:
When dividing 370 by 69, we get 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 5096.9275
If we take 345 away from 370, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 11:
69 goes into 250 3 times with a remainder of 43.
Use 3 as the next digit of our solution. 
Result so far: 5096.92753
Subtract 207 from 250 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 12:
The number 69 fits into 430 6 times, leaving a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 5096.927536
Subtract 414 from 430 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
When dividing 160 by 69, we get 2 with a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 5096.9275362
If we subtract 138 from 160, 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.

Let's proceed to step 14:
220 divided by 69 is 3 with a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 5096.92753623
If we subtract 207 from 220, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final outcome is 5096.92753623, with a leftover of 1.3e-08.