We're dividing 34474240 by 521 
The aim is to understand the frequency of 521 in 34474240.

Going ahead to step 1:
3 divided by 521 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 521

On to step 2:
The number 521 fits into 34 0 times, leaving a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 34, we get 34.
Grab the next digit (4) from the dividend, add it to 34, then carry on: 344 / 521

Step 3:
521 goes into 344 0 times with a remainder of 344.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 344, we end up with 344.
Append the next digit (7) from the dividend to 344 and continue with: 3447 / 521

Moving on to step 4:
If we divide 3447 by 521, we get 6 and a remainder of 321.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 3126 from 3447 to get 321.
Grab the next digit (4) from the dividend, add it to 321, then carry on: 3214 / 521

Advancing to step 5:
521 can be fit into 3214 6 times, resulting in a remainder of 88.
Put 6 as the next digit of the answer. 
Result so far: 66.0
If we take 3126 away from 3214, we end up with 88.
Take the next digit (2) from the dividend and append it to 88, then repeat: 882 / 521

Let's proceed to step 6:
When dividing 882 by 521, we get 1 with a remainder of 361.
Record the quotient 1 as the next digit in the result. 
Result so far: 661.0
If we subtract 521 from 882, we get 361.
Bring next digit (4) of the dividend behind the 361 and repeat the process: 3614 / 521

Advancing to step 7:
If we divide 3614 by 521, we get 6 and a remainder of 488.
Write down 6 as next digit of the result. 
Result so far: 6616.0
The remainder is 488 after subtracting 3126 from 3614.
Include the next digit (0) from the dividend after 488, then repeat: 4880 / 521

Going ahead to step 8:
If we divide 4880 by 521, we get 9 and a remainder of 191.
Put 9 as the next digit of the answer. 
Result so far: 66169.0
Subtract 4689 from 4880 to get 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Step 9:
521 goes into 1910 3 times with a remainder of 347.
Record the quotient 3 as the next digit in the result. 
Result so far: 66169.3
If we subtract 1563 from 1910, we get 347.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3470, and continue the process.

Advancing to step 10:
521 goes into 3470 6 times with a remainder of 344.
Put 6 as the next digit of the answer. 
Result so far: 66169.36
Subtracting 3126 from 3470 leaves us with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Let's proceed to step 11:
521 goes into 3440 6 times with a remainder of 314.
The number 6 becomes the next digit in our result. 
Result so far: 66169.366
Subtract 3126 from 3440 to get 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

In conclusion, the division gives 66169.366 with a balance of 0.0314.