We look at the division of 39013288 by 404 
The aim is to understand the frequency of 404 in 39013288.

Let's proceed to step 1:
If we divide 3 by 404, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 404

Moving on to step 2:
404 goes into 39 0 times with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Grab the next digit (0) from the dividend, add it to 39, then carry on: 390 / 404

Moving on to step 3:
If we divide 390 by 404, we get 0 and a remainder of 390.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 390, we get 390.
Fetch the next digit (1) from the dividend, attach it to 390 and continue: 3901 / 404

Moving on to step 4:
404 can be fit into 3901 9 times, resulting in a remainder of 265.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 3636 from 3901, we get 265.
Append the next digit (3) from the dividend to 265 and continue with: 2653 / 404

Moving on to step 5:
2653 divided by 404 is 6 with a remainder of 229.
Record the quotient 6 as the next digit in the result. 
Result so far: 96.0
The remainder is 229 after subtracting 2424 from 2653.
Fetch the next digit (2) from the dividend, attach it to 229 and continue: 2292 / 404

On to step 6:
The number 404 fits into 2292 5 times, leaving a remainder of 272.
Put 5 as the next digit of the answer. 
Result so far: 965.0
Deduct 2020 from 2292 and we're left with 272.
Fetch the next digit (8) from the dividend, attach it to 272 and continue: 2728 / 404

Step 7:
The number 404 fits into 2728 6 times, leaving a remainder of 304.
Use 6 as the next digit of our solution. 
Result so far: 9656.0
The remainder is 304 after subtracting 2424 from 2728.
Fetch the next digit (8) from the dividend, attach it to 304 and continue: 3048 / 404

Step 8:
If we divide 3048 by 404, we get 7 and a remainder of 220.
Put 7 as the next digit of the answer. 
Result so far: 96567.0
Deduct 2828 from 3048 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 9:
404 goes into 2200 5 times with a remainder of 180.
Use 5 as the next digit of our solution. 
Result so far: 96567.5
If we subtract 2020 from 2200, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 10:
When dividing 1800 by 404, we get 4 with a remainder of 184.
The number 4 becomes the next digit in our result. 
Result so far: 96567.54
If we take 1616 away from 1800, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 11:
1840 divided by 404 is 4 with a remainder of 224.
Put 4 as the next digit of the answer. 
Result so far: 96567.544
Subtracting 1616 from 1840 leaves us with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

In conclusion, the division gives 96567.544 with a balance of 0.0224.