78457249 divided by 571 
The aim is to understand the frequency of 571 in 78457249.

Step 1:
7 divided by 571 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 571

Step 2:
When dividing 78 by 571, we get 0 with a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Bring next digit (4) of the dividend behind the 78 and repeat the process: 784 / 571

Advancing to step 3:
571 goes into 784 1 times with a remainder of 213.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 571 from 784 to get 213.
Take the next digit (5) from the dividend and append it to 213, then repeat: 2135 / 571

Advancing to step 4:
571 can be fit into 2135 3 times, resulting in a remainder of 422.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtract 1713 from 2135 to get 422.
Fetch the next digit (7) from the dividend, attach it to 422 and continue: 4227 / 571

Step 5:
571 goes into 4227 7 times with a remainder of 230.
Record the quotient 7 as the next digit in the result. 
Result so far: 137.0
Deduct 3997 from 4227 and we're left with 230.
Include the next digit (2) from the dividend after 230, then repeat: 2302 / 571

Going ahead to step 6:
2302 divided by 571 is 4 with a remainder of 18.
The next digit of our result is 4. 
Result so far: 1374.0
Subtract 2284 from 2302 to get 18.
Grab the next digit (4) from the dividend, add it to 18, then carry on: 184 / 571

Let's proceed to step 7:
571 goes into 184 0 times with a remainder of 184.
Put 0 as the next digit of the answer. 
Result so far: 13740.0
Subtracting 0 from 184 leaves us with 184.
Bring next digit (9) of the dividend behind the 184 and repeat the process: 1849 / 571

Advancing to step 8:
When dividing 1849 by 571, we get 3 with a remainder of 136.
Record the quotient 3 as the next digit in the result. 
Result so far: 137403.0
If we take 1713 away from 1849, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 9:
1360 divided by 571 is 2 with a remainder of 218.
The number 2 becomes the next digit in our result. 
Result so far: 137403.2
Subtract 1142 from 1360 to get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Moving on to step 10:
If we divide 2180 by 571, we get 3 and a remainder of 467.
Put 3 as the next digit of the answer. 
Result so far: 137403.23
Subtracting 1713 from 2180 leaves us with 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4670, and continue the process.

On to step 11:
571 can be fit into 4670 8 times, resulting in a remainder of 102.
The number 8 becomes the next digit in our result. 
Result so far: 137403.238
If we subtract 4568 from 4670, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Let's proceed to step 12:
The number 571 fits into 1020 1 times, leaving a remainder of 449.
The number 1 becomes the next digit in our result. 
Result so far: 137403.2381
Subtracting 571 from 1020 leaves us with 449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4490, and continue the process.

Let's proceed to step 13:
If we divide 4490 by 571, we get 7 and a remainder of 493.
The number 7 becomes the next digit in our result. 
Result so far: 137403.23817
Subtract 3997 from 4490 to get 493.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4930, and continue the process.

Let's proceed to step 14:
571 can be fit into 4930 8 times, resulting in a remainder of 362.
The next digit of our result is 8. 
Result so far: 137403.238178
Subtracting 4568 from 4930 leaves us with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Step 15:
3620 divided by 571 is 6 with a remainder of 194.
Use 6 as the next digit of our solution. 
Result so far: 137403.2381786
If we subtract 3426 from 3620, we get 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

On to step 16:
The number 571 fits into 1940 3 times, leaving a remainder of 227.
The number 3 becomes the next digit in our result. 
Result so far: 137403.23817863
Subtract 1713 from 1940 to get 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Our division results in 137403.23817863 with a remaining 2.27e-07.