We look at the division of 23765765 by 404 
The aim is to understand the frequency of 404 in 23765765.

Step 1:
The number 404 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 404

Going ahead to step 2:
When dividing 23 by 404, we get 0 with a remainder of 23.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 23 to get 23.
Bring next digit (7) of the dividend behind the 23 and repeat the process: 237 / 404

On to step 3:
404 can be fit into 237 0 times, resulting in a remainder of 237.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 237 after subtracting 0 from 237.
Take the next digit (6) from the dividend and append it to 237, then repeat: 2376 / 404

Let's proceed to step 4:
The number 404 fits into 2376 5 times, leaving a remainder of 356.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 2020 from 2376 to get 356.
Take the next digit (5) from the dividend and append it to 356, then repeat: 3565 / 404

Let's proceed to step 5:
When dividing 3565 by 404, we get 8 with a remainder of 333.
Record the quotient 8 as the next digit in the result. 
Result so far: 58.0
If we take 3232 away from 3565, we end up with 333.
Take the next digit (7) from the dividend and append it to 333, then repeat: 3337 / 404

Step 6:
When dividing 3337 by 404, we get 8 with a remainder of 105.
The next digit of our result is 8. 
Result so far: 588.0
Deduct 3232 from 3337 and we're left with 105.
Include the next digit (6) from the dividend after 105, then repeat: 1056 / 404

Let's proceed to step 7:
When dividing 1056 by 404, we get 2 with a remainder of 248.
The number 2 becomes the next digit in our result. 
Result so far: 5882.0
Deduct 808 from 1056 and we're left with 248.
Take the next digit (5) from the dividend and append it to 248, then repeat: 2485 / 404

Let's proceed to step 8:
If we divide 2485 by 404, we get 6 and a remainder of 61.
Put 6 as the next digit of the answer. 
Result so far: 58826.0
If we take 2424 away from 2485, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 9:
If we divide 610 by 404, we get 1 and a remainder of 206.
The next digit of our result is 1. 
Result so far: 58826.1
If we take 404 away from 610, we end up with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Moving on to step 10:
404 goes into 2060 5 times with a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 58826.15
If we take 2020 away from 2060, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 11:
404 goes into 400 0 times with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 58826.15
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 12:
404 can be fit into 4000 9 times, resulting in a remainder of 364.
The next digit of our result is 9. 
Result so far: 58826.1509
Deduct 3636 from 4000 and we're left with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

On to step 13:
3640 divided by 404 is 9 with a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 58826.15099
Subtracting 3636 from 3640 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 58826.15099, with a leftover of 4e-06.