41780551 ÷ 815 
The aim is to understand the frequency of 815 in 41780551.

Let's proceed to step 1:
When dividing 4 by 815, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 815

Going ahead to step 2:
If we divide 41 by 815, we get 0 and a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 41 and we're left with 41.
Bring next digit (7) of the dividend behind the 41 and repeat the process: 417 / 815

Let's proceed to step 3:
417 divided by 815 is 0 with a remainder of 417.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 417, we end up with 417.
Bring next digit (8) of the dividend behind the 417 and repeat the process: 4178 / 815

Advancing to step 4:
When dividing 4178 by 815, we get 5 with a remainder of 103.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 4075 from 4178 leaves us with 103.
Grab the next digit (0) from the dividend, add it to 103, then carry on: 1030 / 815

Going ahead to step 5:
When dividing 1030 by 815, we get 1 with a remainder of 215.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Subtracting 815 from 1030 leaves us with 215.
Fetch the next digit (5) from the dividend, attach it to 215 and continue: 2155 / 815

On to step 6:
If we divide 2155 by 815, we get 2 and a remainder of 525.
Record the quotient 2 as the next digit in the result. 
Result so far: 512.0
The remainder is 525 after subtracting 1630 from 2155.
Take the next digit (5) from the dividend and append it to 525, then repeat: 5255 / 815

Moving on to step 7:
815 goes into 5255 6 times with a remainder of 365.
The number 6 becomes the next digit in our result. 
Result so far: 5126.0
The remainder is 365 after subtracting 4890 from 5255.
Include the next digit (1) from the dividend after 365, then repeat: 3651 / 815

Advancing to step 8:
When dividing 3651 by 815, we get 4 with a remainder of 391.
Record the quotient 4 as the next digit in the result. 
Result so far: 51264.0
The remainder is 391 after subtracting 3260 from 3651.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

Going ahead to step 9:
When dividing 3910 by 815, we get 4 with a remainder of 650.
Put 4 as the next digit of the answer. 
Result so far: 51264.4
Deduct 3260 from 3910 and we're left with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Moving on to step 10:
815 goes into 6500 7 times with a remainder of 795.
Write down 7 as next digit of the result. 
Result so far: 51264.47
Deduct 5705 from 6500 and we're left with 795.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7950, and continue the process.

Going ahead to step 11:
If we divide 7950 by 815, we get 9 and a remainder of 615.
Write down 9 as next digit of the result. 
Result so far: 51264.479
If we subtract 7335 from 7950, we get 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Advancing to step 12:
815 goes into 6150 7 times with a remainder of 445.
Put 7 as the next digit of the answer. 
Result so far: 51264.4797
If we subtract 5705 from 6150, we get 445.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Moving on to step 13:
When dividing 4450 by 815, we get 5 with a remainder of 375.
The number 5 becomes the next digit in our result. 
Result so far: 51264.47975
If we take 4075 away from 4450, we end up with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Advancing to step 14:
If we divide 3750 by 815, we get 4 and a remainder of 490.
Write down 4 as next digit of the result. 
Result so far: 51264.479754
If we subtract 3260 from 3750, we get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Advancing to step 15:
When dividing 4900 by 815, we get 6 with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 51264.4797546
If we take 4890 away from 4900, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 16:
100 divided by 815 is 0 with a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 51264.4797546
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final result is 51264.4797546 with a remainder of 1e-07.