We divide 81329029 by 686
The aim is to understand the frequency of 686 in 81329029.

Let's proceed to step 1:
If we divide 8 by 686, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 686

On to step 2:
686 can be fit into 81 0 times, resulting in a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Take the next digit (3) from the dividend and append it to 81, then repeat: 813 / 686

Moving on to step 3:
686 goes into 813 1 times with a remainder of 127.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 686 away from 813, we end up with 127.
Bring next digit (2) of the dividend behind the 127 and repeat the process: 1272 / 686

Advancing to step 4:
If we divide 1272 by 686, we get 1 and a remainder of 586.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtract 686 from 1272 to get 586.
Grab the next digit (9) from the dividend, add it to 586, then carry on: 5869 / 686

Going ahead to step 5:
The number 686 fits into 5869 8 times, leaving a remainder of 381.
Record the quotient 8 as the next digit in the result. 
Result so far: 118.0
Deduct 5488 from 5869 and we're left with 381.
Take the next digit (0) from the dividend and append it to 381, then repeat: 3810 / 686

Advancing to step 6:
The number 686 fits into 3810 5 times, leaving a remainder of 380.
The next digit of our result is 5. 
Result so far: 1185.0
If we take 3430 away from 3810, we end up with 380.
Bring next digit (2) of the dividend behind the 380 and repeat the process: 3802 / 686

Moving on to step 7:
If we divide 3802 by 686, we get 5 and a remainder of 372.
The number 5 becomes the next digit in our result. 
Result so far: 11855.0
The remainder is 372 after subtracting 3430 from 3802.
Fetch the next digit (9) from the dividend, attach it to 372 and continue: 3729 / 686

Step 8:
The number 686 fits into 3729 5 times, leaving a remainder of 299.
Write down 5 as next digit of the result. 
Result so far: 118555.0
Subtract 3430 from 3729 to get 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Step 9:
When dividing 2990 by 686, we get 4 with a remainder of 246.
Write down 4 as next digit of the result. 
Result so far: 118555.4
Subtract 2744 from 2990 to get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Step 10:
686 can be fit into 2460 3 times, resulting in a remainder of 402.
The number 3 becomes the next digit in our result. 
Result so far: 118555.43
If we subtract 2058 from 2460, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Let's proceed to step 11:
4020 divided by 686 is 5 with a remainder of 590.
Write down 5 as next digit of the result. 
Result so far: 118555.435
Subtract 3430 from 4020 to get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Advancing to step 12:
If we divide 5900 by 686, we get 8 and a remainder of 412.
The next digit of our result is 8. 
Result so far: 118555.4358
Deduct 5488 from 5900 and we're left with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Let's proceed to step 13:
When dividing 4120 by 686, we get 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 118555.43586
Subtract 4116 from 4120 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 14:
686 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 118555.43586
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 15:
If we divide 400 by 686, we get 0 and a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 118555.43586
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 118555.43586, with a leftover of 4e-06.