81355737 ÷ 506 
The aim is to understand the frequency of 506 in 81355737.

On to step 1:
The number 506 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 506

Moving on to step 2:
If we divide 81 by 506, we get 0 and a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Bring next digit (3) of the dividend behind the 81 and repeat the process: 813 / 506

On to step 3:
506 goes into 813 1 times with a remainder of 307.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 307 after subtracting 506 from 813.
Bring next digit (5) of the dividend behind the 307 and repeat the process: 3075 / 506

Going ahead to step 4:
506 can be fit into 3075 6 times, resulting in a remainder of 39.
The next digit of our result is 6. 
Result so far: 16.0
Deduct 3036 from 3075 and we're left with 39.
Take the next digit (5) from the dividend and append it to 39, then repeat: 395 / 506

Moving on to step 5:
506 can be fit into 395 0 times, resulting in a remainder of 395.
Put 0 as the next digit of the answer. 
Result so far: 160.0
Subtracting 0 from 395 leaves us with 395.
Bring next digit (7) of the dividend behind the 395 and repeat the process: 3957 / 506

Advancing to step 6:
If we divide 3957 by 506, we get 7 and a remainder of 415.
The number 7 becomes the next digit in our result. 
Result so far: 1607.0
If we subtract 3542 from 3957, we get 415.
Include the next digit (3) from the dividend after 415, then repeat: 4153 / 506

On to step 7:
506 goes into 4153 8 times with a remainder of 105.
Write down 8 as next digit of the result. 
Result so far: 16078.0
Subtracting 4048 from 4153 leaves us with 105.
Append the next digit (7) from the dividend to 105 and continue with: 1057 / 506

Going ahead to step 8:
506 can be fit into 1057 2 times, resulting in a remainder of 45.
Put 2 as the next digit of the answer. 
Result so far: 160782.0
The remainder is 45 after subtracting 1012 from 1057.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 9:
506 can be fit into 450 0 times, resulting in a remainder of 450.
Write down 0 as next digit of the result. 
Result so far: 160782.0
If we subtract 0 from 450, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Let's proceed to step 10:
506 goes into 4500 8 times with a remainder of 452.
Record the quotient 8 as the next digit in the result. 
Result so far: 160782.08
The remainder is 452 after subtracting 4048 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Going ahead to step 11:
The number 506 fits into 4520 8 times, leaving a remainder of 472.
Record the quotient 8 as the next digit in the result. 
Result so far: 160782.088
If we subtract 4048 from 4520, we get 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

In conclusion, the division gives 160782.088 with a balance of 0.0472.