81434968 divided by 505 
The aim is to understand the frequency of 505 in 81434968.

On to step 1:
8 divided by 505 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 505

Going ahead to step 2:
505 can be fit into 81 0 times, resulting in a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Fetch the next digit (4) from the dividend, attach it to 81 and continue: 814 / 505

Let's proceed to step 3:
505 can be fit into 814 1 times, resulting in a remainder of 309.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 505 from 814, we get 309.
Fetch the next digit (3) from the dividend, attach it to 309 and continue: 3093 / 505

Going ahead to step 4:
3093 divided by 505 is 6 with a remainder of 63.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we take 3030 away from 3093, we end up with 63.
Take the next digit (4) from the dividend and append it to 63, then repeat: 634 / 505

Step 5:
634 divided by 505 is 1 with a remainder of 129.
The number 1 becomes the next digit in our result. 
Result so far: 161.0
Subtract 505 from 634 to get 129.
Take the next digit (9) from the dividend and append it to 129, then repeat: 1299 / 505

Going ahead to step 6:
The number 505 fits into 1299 2 times, leaving a remainder of 289.
Write down 2 as next digit of the result. 
Result so far: 1612.0
The remainder is 289 after subtracting 1010 from 1299.
Fetch the next digit (6) from the dividend, attach it to 289 and continue: 2896 / 505

Advancing to step 7:
When dividing 2896 by 505, we get 5 with a remainder of 371.
Put 5 as the next digit of the answer. 
Result so far: 16125.0
The remainder is 371 after subtracting 2525 from 2896.
Take the next digit (8) from the dividend and append it to 371, then repeat: 3718 / 505

On to step 8:
505 goes into 3718 7 times with a remainder of 183.
Use 7 as the next digit of our solution. 
Result so far: 161257.0
If we subtract 3535 from 3718, we get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Let's proceed to step 9:
If we divide 1830 by 505, we get 3 and a remainder of 315.
Record the quotient 3 as the next digit in the result. 
Result so far: 161257.3
Subtract 1515 from 1830 to get 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Step 10:
3150 divided by 505 is 6 with a remainder of 120.
The number 6 becomes the next digit in our result. 
Result so far: 161257.36
If we take 3030 away from 3150, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 11:
If we divide 1200 by 505, we get 2 and a remainder of 190.
The next digit of our result is 2. 
Result so far: 161257.362
The remainder is 190 after subtracting 1010 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 12:
505 can be fit into 1900 3 times, resulting in a remainder of 385.
Write down 3 as next digit of the result. 
Result so far: 161257.3623
Subtracting 1515 from 1900 leaves us with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Step 13:
3850 divided by 505 is 7 with a remainder of 315.
Put 7 as the next digit of the answer. 
Result so far: 161257.36237
Deduct 3535 from 3850 and we're left with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Going ahead to step 14:
If we divide 3150 by 505, we get 6 and a remainder of 120.
The number 6 becomes the next digit in our result. 
Result so far: 161257.362376
Subtracting 3030 from 3150 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 15:
The number 505 fits into 1200 2 times, leaving a remainder of 190.
The number 2 becomes the next digit in our result. 
Result so far: 161257.3623762
Subtract 1010 from 1200 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Moving on to step 16:
1900 divided by 505 is 3 with a remainder of 385.
Put 3 as the next digit of the answer. 
Result so far: 161257.36237623
Deduct 1515 from 1900 and we're left with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

In conclusion, the division gives 161257.36237623 with a balance of 3.85e-07.