Let's divide 81044744 by 521
The aim is to understand the frequency of 521 in 81044744.

Moving on to step 1:
521 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 521

Going ahead to step 2:
The number 521 fits into 81 0 times, leaving a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Append the next digit (0) from the dividend to 81 and continue with: 810 / 521

Step 3:
521 can be fit into 810 1 times, resulting in a remainder of 289.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 289 after subtracting 521 from 810.
Fetch the next digit (4) from the dividend, attach it to 289 and continue: 2894 / 521

Advancing to step 4:
2894 divided by 521 is 5 with a remainder of 289.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Deduct 2605 from 2894 and we're left with 289.
Grab the next digit (4) from the dividend, add it to 289, then carry on: 2894 / 521

On to step 5:
2894 divided by 521 is 5 with a remainder of 289.
Record the quotient 5 as the next digit in the result. 
Result so far: 155.0
If we take 2605 away from 2894, we end up with 289.
Append the next digit (7) from the dividend to 289 and continue with: 2897 / 521

Step 6:
When dividing 2897 by 521, we get 5 with a remainder of 292.
The next digit of our result is 5. 
Result so far: 1555.0
If we take 2605 away from 2897, we end up with 292.
Append the next digit (4) from the dividend to 292 and continue with: 2924 / 521

Going ahead to step 7:
When dividing 2924 by 521, we get 5 with a remainder of 319.
Put 5 as the next digit of the answer. 
Result so far: 15555.0
If we subtract 2605 from 2924, we get 319.
Append the next digit (4) from the dividend to 319 and continue with: 3194 / 521

On to step 8:
521 goes into 3194 6 times with a remainder of 68.
The number 6 becomes the next digit in our result. 
Result so far: 155556.0
If we subtract 3126 from 3194, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 9:
521 can be fit into 680 1 times, resulting in a remainder of 159.
Record the quotient 1 as the next digit in the result. 
Result so far: 155556.1
Deduct 521 from 680 and we're left with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Going ahead to step 10:
When dividing 1590 by 521, we get 3 with a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 155556.13
If we subtract 1563 from 1590, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 11:
521 can be fit into 270 0 times, resulting in a remainder of 270.
Write down 0 as next digit of the result. 
Result so far: 155556.13
Subtract 0 from 270 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Moving on to step 12:
521 can be fit into 2700 5 times, resulting in a remainder of 95.
Record the quotient 5 as the next digit in the result. 
Result so far: 155556.1305
If we take 2605 away from 2700, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Moving on to step 13:
521 can be fit into 950 1 times, resulting in a remainder of 429.
Record the quotient 1 as the next digit in the result. 
Result so far: 155556.13051
If we subtract 521 from 950, we get 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Advancing to step 14:
521 goes into 4290 8 times with a remainder of 122.
The next digit of our result is 8. 
Result so far: 155556.130518
The remainder is 122 after subtracting 4168 from 4290.
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 15:
521 can be fit into 1220 2 times, resulting in a remainder of 178.
The next digit of our result is 2. 
Result so far: 155556.1305182
If we subtract 1042 from 1220, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Going ahead to step 16:
521 goes into 1780 3 times with a remainder of 217.
Use 3 as the next digit of our solution. 
Result so far: 155556.13051823
Subtracting 1563 from 1780 leaves us with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

The final result is 155556.13051823 with a remainder of 2.17e-07.