Let's divide 22749631 by 521
The aim is to understand the frequency of 521 in 22749631.

Moving on to step 1:
If we divide 2 by 521, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 521

Step 2:
22 divided by 521 is 0 with a remainder of 22.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 22, we get 22.
Take the next digit (7) from the dividend and append it to 22, then repeat: 227 / 521

Step 3:
521 can be fit into 227 0 times, resulting in a remainder of 227.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 227 to get 227.
Take the next digit (4) from the dividend and append it to 227, then repeat: 2274 / 521

On to step 4:
2274 divided by 521 is 4 with a remainder of 190.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 2084 from 2274, we get 190.
Fetch the next digit (9) from the dividend, attach it to 190 and continue: 1909 / 521

Moving on to step 5:
521 goes into 1909 3 times with a remainder of 346.
Write down 3 as next digit of the result. 
Result so far: 43.0
If we take 1563 away from 1909, we end up with 346.
Fetch the next digit (6) from the dividend, attach it to 346 and continue: 3466 / 521

Let's proceed to step 6:
3466 divided by 521 is 6 with a remainder of 340.
Record the quotient 6 as the next digit in the result. 
Result so far: 436.0
If we take 3126 away from 3466, we end up with 340.
Include the next digit (3) from the dividend after 340, then repeat: 3403 / 521

Moving on to step 7:
If we divide 3403 by 521, we get 6 and a remainder of 277.
Write down 6 as next digit of the result. 
Result so far: 4366.0
The remainder is 277 after subtracting 3126 from 3403.
Fetch the next digit (1) from the dividend, attach it to 277 and continue: 2771 / 521

Going ahead to step 8:
521 goes into 2771 5 times with a remainder of 166.
The number 5 becomes the next digit in our result. 
Result so far: 43665.0
The remainder is 166 after subtracting 2605 from 2771.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Step 9:
The number 521 fits into 1660 3 times, leaving a remainder of 97.
Write down 3 as next digit of the result. 
Result so far: 43665.3
Deduct 1563 from 1660 and we're left with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Going ahead to step 10:
521 goes into 970 1 times with a remainder of 449.
Use 1 as the next digit of our solution. 
Result so far: 43665.31
Deduct 521 from 970 and we're left 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.

Step 11:
521 goes into 4490 8 times with a remainder of 322.
Use 8 as the next digit of our solution. 
Result so far: 43665.318
If we subtract 4168 from 4490, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Step 12:
521 goes into 3220 6 times with a remainder of 94.
The next digit of our result is 6. 
Result so far: 43665.3186
Subtracting 3126 from 3220 leaves us with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Going ahead to step 13:
When dividing 940 by 521, we get 1 with a remainder of 419.
Record the quotient 1 as the next digit in the result. 
Result so far: 43665.31861
The remainder is 419 after subtracting 521 from 940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Moving on to step 14:
521 can be fit into 4190 8 times, resulting in a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 43665.318618
The remainder is 22 after subtracting 4168 from 4190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 15:
If we divide 220 by 521, we get 0 and a remainder of 220.
The number 0 becomes the next digit in our result. 
Result so far: 43665.318618
The remainder is 220 after subtracting 0 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 16:
2200 divided by 521 is 4 with a remainder of 116.
Record the quotient 4 as the next digit in the result. 
Result so far: 43665.31861804
If we take 2084 away from 2200, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

The final result is 43665.31861804 with a remainder of 1.16e-07.