221623 ÷ 69 
The aim is to understand the frequency of 69 in 221623.

Going ahead to step 1:
2 divided by 69 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (2) from the dividend, add it to 2, then carry on: 22 / 69

Advancing to step 2:
The number 69 fits into 22 0 times, leaving a remainder of 22.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 22 to get 22.
Take the next digit (1) from the dividend and append it to 22, then repeat: 221 / 69

On to step 3:
69 goes into 221 3 times with a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 207 away from 221, we end up with 14.
Include the next digit (6) from the dividend after 14, then repeat: 146 / 69

Step 4:
69 goes into 146 2 times with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 32.0
The remainder is 8 after subtracting 138 from 146.
Grab the next digit (2) from the dividend, add it to 8, then carry on: 82 / 69

Step 5:
If we divide 82 by 69, we get 1 and a remainder of 13.
The next digit of our result is 1. 
Result so far: 321.0
Deduct 69 from 82 and we're left with 13.
Include the next digit (3) from the dividend after 13, then repeat: 133 / 69

Step 6:
133 divided by 69 is 1 with a remainder of 64.
The next digit of our result is 1. 
Result so far: 3211.0
If we take 69 away from 133, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 7:
When dividing 640 by 69, we get 9 with a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 3211.9
The remainder is 19 after subtracting 621 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 8:
69 goes into 190 2 times with a remainder of 52.
The next digit of our result is 2. 
Result so far: 3211.92
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.

Advancing to step 9:
69 goes into 520 7 times with a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 3211.927
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.

On to step 10:
If we divide 370 by 69, we get 5 and a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 3211.9275
If we subtract 345 from 370, we get 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:
The number 69 fits into 250 3 times, leaving a remainder of 43.
The next digit of our result is 3. 
Result so far: 3211.92753
If we take 207 away from 250, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 12:
69 goes into 430 6 times with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 3211.927536
If we take 414 away from 430, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
69 can be fit into 160 2 times, resulting in a remainder of 22.
Write down 2 as next digit of the result. 
Result so far: 3211.9275362
If we take 138 away from 160, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 14:
69 goes into 220 3 times with a remainder of 13.
The next digit of our result is 3. 
Result so far: 3211.92753623
Subtract 207 from 220 to 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 3211.92753623, with a leftover of 1.3e-08.