We look at the division of 3805593 by 571 
The aim is to understand the frequency of 571 in 3805593.

Going ahead to step 1:
When dividing 3 by 571, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 571

Advancing to step 2:
When dividing 38 by 571, we get 0 with a remainder of 38.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Take the next digit (0) from the dividend and append it to 38, then repeat: 380 / 571

On to step 3:
The number 571 fits into 380 0 times, leaving a remainder of 380.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 380 to get 380.
Append the next digit (5) from the dividend to 380 and continue with: 3805 / 571

Advancing to step 4:
When dividing 3805 by 571, we get 6 with a remainder of 379.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we take 3426 away from 3805, we end up with 379.
Take the next digit (5) from the dividend and append it to 379, then repeat: 3795 / 571

Going ahead to step 5:
The number 571 fits into 3795 6 times, leaving a remainder of 369.
Write down 6 as next digit of the result. 
Result so far: 66.0
If we take 3426 away from 3795, we end up with 369.
Include the next digit (9) from the dividend after 369, then repeat: 3699 / 571

Step 6:
When dividing 3699 by 571, we get 6 with a remainder of 273.
Put 6 as the next digit of the answer. 
Result so far: 666.0
If we subtract 3426 from 3699, we get 273.
Bring next digit (3) of the dividend behind the 273 and repeat the process: 2733 / 571

Advancing to step 7:
2733 divided by 571 is 4 with a remainder of 449.
Use 4 as the next digit of our solution. 
Result so far: 6664.0
If we subtract 2284 from 2733, we get 449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4490, and continue the process.

Going ahead to step 8:
4490 divided by 571 is 7 with a remainder of 493.
Write down 7 as next digit of the result. 
Result so far: 6664.7
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.

Going ahead to step 9:
571 goes into 4930 8 times with a remainder of 362.
Record the quotient 8 as the next digit in the result. 
Result so far: 6664.78
Subtract 4568 from 4930 to get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

On to step 10:
3620 divided by 571 is 6 with a remainder of 194.
Record the quotient 6 as the next digit in the result. 
Result so far: 6664.786
If we take 3426 away from 3620, we end up with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Step 11:
If we divide 1940 by 571, we get 3 and a remainder of 227.
Put 3 as the next digit of the answer. 
Result so far: 6664.7863
If we take 1713 away from 1940, we end up with 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Moving on to step 12:
571 goes into 2270 3 times with a remainder of 557.
Record the quotient 3 as the next digit in the result. 
Result so far: 6664.78633
Subtracting 1713 from 2270 leaves us with 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Our division results in 6664.78633 with a remaining 0.000557.