72521870 divided by 574 
The aim is to understand the frequency of 574 in 72521870.

Let's proceed to step 1:
When dividing 7 by 574, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 574

Let's proceed to step 2:
574 goes into 72 0 times with a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Include the next digit (5) from the dividend after 72, then repeat: 725 / 574

Going ahead to step 3:
574 goes into 725 1 times with a remainder of 151.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 574 from 725 and we're left with 151.
Append the next digit (2) from the dividend to 151 and continue with: 1512 / 574

Going ahead to step 4:
574 can be fit into 1512 2 times, resulting in a remainder of 364.
The next digit of our result is 2. 
Result so far: 12.0
Deduct 1148 from 1512 and we're left with 364.
Include the next digit (1) from the dividend after 364, then repeat: 3641 / 574

Moving on to step 5:
When dividing 3641 by 574, we get 6 with a remainder of 197.
Use 6 as the next digit of our solution. 
Result so far: 126.0
Deduct 3444 from 3641 and we're left with 197.
Grab the next digit (8) from the dividend, add it to 197, then carry on: 1978 / 574

Step 6:
If we divide 1978 by 574, we get 3 and a remainder of 256.
Write down 3 as next digit of the result. 
Result so far: 1263.0
Subtract 1722 from 1978 to get 256.
Fetch the next digit (7) from the dividend, attach it to 256 and continue: 2567 / 574

On to step 7:
When dividing 2567 by 574, we get 4 with a remainder of 271.
Write down 4 as next digit of the result. 
Result so far: 12634.0
If we subtract 2296 from 2567, we get 271.
Include the next digit (0) from the dividend after 271, then repeat: 2710 / 574

Advancing to step 8:
If we divide 2710 by 574, we get 4 and a remainder of 414.
The number 4 becomes the next digit in our result. 
Result so far: 126344.0
Subtract 2296 from 2710 to get 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Advancing to step 9:
The number 574 fits into 4140 7 times, leaving a remainder of 122.
Write down 7 as next digit of the result. 
Result so far: 126344.7
If we take 4018 away from 4140, we end up with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Advancing to step 10:
574 goes into 1220 2 times with a remainder of 72.
Record the quotient 2 as the next digit in the result. 
Result so far: 126344.72
Subtracting 1148 from 1220 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 11:
If we divide 720 by 574, we get 1 and a remainder of 146.
Use 1 as the next digit of our solution. 
Result so far: 126344.721
Subtract 574 from 720 to get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Let's proceed to step 12:
If we divide 1460 by 574, we get 2 and a remainder of 312.
The number 2 becomes the next digit in our result. 
Result so far: 126344.7212
Subtract 1148 from 1460 to get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Let's proceed to step 13:
574 can be fit into 3120 5 times, resulting in a remainder of 250.
Put 5 as the next digit of the answer. 
Result so far: 126344.72125
If we subtract 2870 from 3120, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 14:
When dividing 2500 by 574, we get 4 with a remainder of 204.
Write down 4 as next digit of the result. 
Result so far: 126344.721254
Subtracting 2296 from 2500 leaves us with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Let's proceed to step 15:
2040 divided by 574 is 3 with a remainder of 318.
The next digit of our result is 3. 
Result so far: 126344.7212543
Deduct 1722 from 2040 and we're left with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Moving on to step 16:
When dividing 3180 by 574, we get 5 with a remainder of 310.
Write down 5 as next digit of the result. 
Result so far: 126344.72125435
The remainder is 310 after subtracting 2870 from 3180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

The final result is 126344.72125435 with a remainder of 3.1e-07.