81776520 divided by 731 
The aim is to understand the frequency of 731 in 81776520.

Advancing to step 1:
If we divide 8 by 731, we get 0 and 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.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 731

Advancing to step 2:
The number 731 fits into 81 0 times, leaving a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Include the next digit (7) from the dividend after 81, then repeat: 817 / 731

Let's proceed to step 3:
The number 731 fits into 817 1 times, leaving a remainder of 86.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 731 from 817 and we're left with 86.
Fetch the next digit (7) from the dividend, attach it to 86 and continue: 867 / 731

Step 4:
731 can be fit into 867 1 times, resulting in a remainder of 136.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 731 from 867 to get 136.
Include the next digit (6) from the dividend after 136, then repeat: 1366 / 731

Going ahead to step 5:
The number 731 fits into 1366 1 times, leaving a remainder of 635.
Record the quotient 1 as the next digit in the result. 
Result so far: 111.0
Subtracting 731 from 1366 leaves us with 635.
Include the next digit (5) from the dividend after 635, then repeat: 6355 / 731

Moving on to step 6:
731 can be fit into 6355 8 times, resulting in a remainder of 507.
Record the quotient 8 as the next digit in the result. 
Result so far: 1118.0
If we subtract 5848 from 6355, we get 507.
Bring next digit (2) of the dividend behind the 507 and repeat the process: 5072 / 731

Let's proceed to step 7:
5072 divided by 731 is 6 with a remainder of 686.
Write down 6 as next digit of the result. 
Result so far: 11186.0
Deduct 4386 from 5072 and we're left with 686.
Fetch the next digit (0) from the dividend, attach it to 686 and continue: 6860 / 731

On to step 8:
If we divide 6860 by 731, we get 9 and a remainder of 281.
The number 9 becomes the next digit in our result. 
Result so far: 111869.0
Subtracting 6579 from 6860 leaves us with 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Advancing to step 9:
The number 731 fits into 2810 3 times, leaving a remainder of 617.
The next digit of our result is 3. 
Result so far: 111869.3
Subtract 2193 from 2810 to get 617.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

On to step 10:
731 can be fit into 6170 8 times, resulting in a remainder of 322.
The number 8 becomes the next digit in our result. 
Result so far: 111869.38
Subtracting 5848 from 6170 leaves us with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

On to step 11:
When dividing 3220 by 731, we get 4 with a remainder of 296.
Write down 4 as next digit of the result. 
Result so far: 111869.384
If we take 2924 away from 3220, we end up with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 12:
731 goes into 2960 4 times with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 111869.3844
If we take 2924 away from 2960, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final result is 111869.3844 with a remainder of 0.00036.