Let's divide 74704338 by 815
The aim is to understand the frequency of 815 in 74704338.

Moving on to step 1:
7 divided by 815 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 815

Let's proceed to step 2:
815 goes into 74 0 times with a remainder of 74.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 74 leaves us with 74.
Fetch the next digit (7) from the dividend, attach it to 74 and continue: 747 / 815

On to step 3:
When dividing 747 by 815, we get 0 with a remainder of 747.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 747 leaves us with 747.
Append the next digit (0) from the dividend to 747 and continue with: 7470 / 815

Step 4:
When dividing 7470 by 815, we get 9 with a remainder of 135.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 7335 from 7470 leaves us with 135.
Fetch the next digit (4) from the dividend, attach it to 135 and continue: 1354 / 815

Going ahead to step 5:
The number 815 fits into 1354 1 times, leaving a remainder of 539.
The next digit of our result is 1. 
Result so far: 91.0
Deduct 815 from 1354 and we're left with 539.
Bring next digit (3) of the dividend behind the 539 and repeat the process: 5393 / 815

Advancing to step 6:
If we divide 5393 by 815, we get 6 and a remainder of 503.
Write down 6 as next digit of the result. 
Result so far: 916.0
The remainder is 503 after subtracting 4890 from 5393.
Include the next digit (3) from the dividend after 503, then repeat: 5033 / 815

On to step 7:
When dividing 5033 by 815, we get 6 with a remainder of 143.
Write down 6 as next digit of the result. 
Result so far: 9166.0
The remainder is 143 after subtracting 4890 from 5033.
Bring next digit (8) of the dividend behind the 143 and repeat the process: 1438 / 815

On to step 8:
When dividing 1438 by 815, we get 1 with a remainder of 623.
Use 1 as the next digit of our solution. 
Result so far: 91661.0
If we subtract 815 from 1438, we get 623.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6230, and continue the process.

Advancing to step 9:
6230 divided by 815 is 7 with a remainder of 525.
Record the quotient 7 as the next digit in the result. 
Result so far: 91661.7
Subtracting 5705 from 6230 leaves us with 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Moving on to step 10:
815 goes into 5250 6 times with a remainder of 360.
Write down 6 as next digit of the result. 
Result so far: 91661.76
If we take 4890 away from 5250, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Going ahead to step 11:
The number 815 fits into 3600 4 times, leaving a remainder of 340.
The next digit of our result is 4. 
Result so far: 91661.764
Subtract 3260 from 3600 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 12:
815 goes into 3400 4 times with a remainder of 140.
Write down 4 as next digit of the result. 
Result so far: 91661.7644
Deduct 3260 from 3400 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

The final outcome is 91661.7644, with a leftover of 0.0014.