We're dividing 728621 by 69 
The aim is to understand the frequency of 69 in 728621.

Moving on to step 1:
If we divide 7 by 69, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 69

On to step 2:
When dividing 72 by 69, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 69 away from 72, we end up with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 69

Let's proceed to step 3:
When dividing 38 by 69, we get 0 with a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we take 0 away from 38, we end up with 38.
Grab the next digit (6) from the dividend, add it to 38, then carry on: 386 / 69

On to step 4:
If we divide 386 by 69, we get 5 and a remainder of 41.
Put 5 as the next digit of the answer. 
Result so far: 105.0
Subtract 345 from 386 to get 41.
Append the next digit (2) from the dividend to 41 and continue with: 412 / 69

Going ahead to step 5:
When dividing 412 by 69, we get 5 with a remainder of 67.
The next digit of our result is 5. 
Result so far: 1055.0
Subtract 345 from 412 to get 67.
Grab the next digit (1) from the dividend, add it to 67, then carry on: 671 / 69

Let's proceed to step 6:
671 divided by 69 is 9 with a remainder of 50.
Put 9 as the next digit of the answer. 
Result so far: 10559.0
The remainder is 50 after subtracting 621 from 671.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 7:
500 divided by 69 is 7 with a remainder of 17.
The next digit of our result is 7. 
Result so far: 10559.7
Subtract 483 from 500 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 8:
When dividing 170 by 69, we get 2 with a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 10559.72
Deduct 138 from 170 and we're left with 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:
69 can be fit into 320 4 times, resulting in a remainder of 44.
Use 4 as the next digit of our solution. 
Result so far: 10559.724
Subtract 276 from 320 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 10:
The number 69 fits into 440 6 times, leaving a remainder of 26.
Write down 6 as next digit of the result. 
Result so far: 10559.7246
If we take 414 away from 440, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 11:
The number 69 fits into 260 3 times, leaving a remainder of 53.
Write down 3 as next digit of the result. 
Result so far: 10559.72463
Subtract 207 from 260 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 12:
530 divided by 69 is 7 with a remainder of 47.
Put 7 as the next digit of the answer. 
Result so far: 10559.724637
Subtract 483 from 530 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 13:
470 divided by 69 is 6 with a remainder of 56.
Record the quotient 6 as the next digit in the result. 
Result so far: 10559.7246376
If we subtract 414 from 470, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 14:
When dividing 560 by 69, we get 8 with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 10559.72463768
If we subtract 552 from 560, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 10559.72463768 with a remaining 8e-09.