67691988 divided by 843 
The aim is to understand the frequency of 843 in 67691988.

On to step 1:
When dividing 6 by 843, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 843

Advancing to step 2:
If we divide 67 by 843, we get 0 and a remainder of 67.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 67 after subtracting 0 from 67.
Include the next digit (6) from the dividend after 67, then repeat: 676 / 843

Advancing to step 3:
The number 843 fits into 676 0 times, leaving a remainder of 676.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 676, we get 676.
Take the next digit (9) from the dividend and append it to 676, then repeat: 6769 / 843

Going ahead to step 4:
843 can be fit into 6769 8 times, resulting in a remainder of 25.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 6744 away from 6769, we end up with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 843

Going ahead to step 5:
843 can be fit into 251 0 times, resulting in a remainder of 251.
The next digit of our result is 0. 
Result so far: 80.0
If we take 0 away from 251, we end up with 251.
Grab the next digit (9) from the dividend, add it to 251, then carry on: 2519 / 843

Moving on to step 6:
When dividing 2519 by 843, we get 2 with a remainder of 833.
Use 2 as the next digit of our solution. 
Result so far: 802.0
The remainder is 833 after subtracting 1686 from 2519.
Take the next digit (8) from the dividend and append it to 833, then repeat: 8338 / 843

Step 7:
When dividing 8338 by 843, we get 9 with a remainder of 751.
The number 9 becomes the next digit in our result. 
Result so far: 8029.0
If we take 7587 away from 8338, we end up with 751.
Append the next digit (8) from the dividend to 751 and continue with: 7518 / 843

Going ahead to step 8:
The number 843 fits into 7518 8 times, leaving a remainder of 774.
Write down 8 as next digit of the result. 
Result so far: 80298.0
The remainder is 774 after subtracting 6744 from 7518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7740, and continue the process.

Step 9:
843 can be fit into 7740 9 times, resulting in a remainder of 153.
Put 9 as the next digit of the answer. 
Result so far: 80298.9
Subtract 7587 from 7740 to get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Step 10:
1530 divided by 843 is 1 with a remainder of 687.
The next digit of our result is 1. 
Result so far: 80298.91
Deduct 843 from 1530 and we're left with 687.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6870, and continue the process.

Moving on to step 11:
When dividing 6870 by 843, we get 8 with a remainder of 126.
Write down 8 as next digit of the result. 
Result so far: 80298.918
Deduct 6744 from 6870 and we're left with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Step 12:
843 goes into 1260 1 times with a remainder of 417.
The next digit of our result is 1. 
Result so far: 80298.9181
If we subtract 843 from 1260, we get 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

On to step 13:
843 can be fit into 4170 4 times, resulting in a remainder of 798.
Record the quotient 4 as the next digit in the result. 
Result so far: 80298.91814
The remainder is 798 after subtracting 3372 from 4170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7980, and continue the process.

Let's proceed to step 14:
When dividing 7980 by 843, we get 9 with a remainder of 393.
The number 9 becomes the next digit in our result. 
Result so far: 80298.918149
Subtracting 7587 from 7980 leaves us with 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

Moving on to step 15:
When dividing 3930 by 843, we get 4 with a remainder of 558.
Use 4 as the next digit of our solution. 
Result so far: 80298.9181494
Deduct 3372 from 3930 and we're left with 558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

Advancing to step 16:
If we divide 5580 by 843, we get 6 and a remainder of 522.
Put 6 as the next digit of the answer. 
Result so far: 80298.91814946
The remainder is 522 after subtracting 5058 from 5580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

The final outcome is 80298.91814946, with a leftover of 5.22e-07.