16819512 divided by 843 
The aim is to understand the frequency of 843 in 16819512.

Moving on to step 1:
843 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 843

Advancing to step 2:
The number 843 fits into 16 0 times, leaving a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Bring next digit (8) of the dividend behind the 16 and repeat the process: 168 / 843

Let's proceed to step 3:
168 divided by 843 is 0 with a remainder of 168.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 168 and we're left with 168.
Grab the next digit (1) from the dividend, add it to 168, then carry on: 1681 / 843

Going ahead to step 4:
843 goes into 1681 1 times with a remainder of 838.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 843 from 1681 leaves us with 838.
Bring next digit (9) of the dividend behind the 838 and repeat the process: 8389 / 843

Going ahead to step 5:
843 goes into 8389 9 times with a remainder of 802.
The next digit of our result is 9. 
Result so far: 19.0
Subtract 7587 from 8389 to get 802.
Include the next digit (5) from the dividend after 802, then repeat: 8025 / 843

Let's proceed to step 6:
843 goes into 8025 9 times with a remainder of 438.
The next digit of our result is 9. 
Result so far: 199.0
Subtracting 7587 from 8025 leaves us with 438.
Grab the next digit (1) from the dividend, add it to 438, then carry on: 4381 / 843

On to step 7:
If we divide 4381 by 843, we get 5 and a remainder of 166.
Use 5 as the next digit of our solution. 
Result so far: 1995.0
If we subtract 4215 from 4381, we get 166.
Include the next digit (2) from the dividend after 166, then repeat: 1662 / 843

Let's proceed to step 8:
If we divide 1662 by 843, we get 1 and a remainder of 819.
The number 1 becomes the next digit in our result. 
Result so far: 19951.0
Subtracting 843 from 1662 leaves us with 819.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8190, and continue the process.

On to step 9:
When dividing 8190 by 843, we get 9 with a remainder of 603.
Put 9 as the next digit of the answer. 
Result so far: 19951.9
Deduct 7587 from 8190 and we're left with 603.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6030, and continue the process.

Step 10:
843 goes into 6030 7 times with a remainder of 129.
Write down 7 as next digit of the result. 
Result so far: 19951.97
If we take 5901 away from 6030, we end up with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Moving on to step 11:
If we divide 1290 by 843, we get 1 and a remainder of 447.
The number 1 becomes the next digit in our result. 
Result so far: 19951.971
Deduct 843 from 1290 and we're left with 447.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4470, and continue the process.

Let's proceed to step 12:
4470 divided by 843 is 5 with a remainder of 255.
The next digit of our result is 5. 
Result so far: 19951.9715
Subtract 4215 from 4470 to get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

On to step 13:
When dividing 2550 by 843, we get 3 with a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 19951.97153
Deduct 2529 from 2550 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 14:
210 divided by 843 is 0 with a remainder of 210.
The number 0 becomes the next digit in our result. 
Result so far: 19951.97153
If we take 0 away from 210, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Advancing to step 15:
843 can be fit into 2100 2 times, resulting in a remainder of 414.
Put 2 as the next digit of the answer. 
Result so far: 19951.9715302
Deduct 1686 from 2100 and we're left with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Advancing to step 16:
843 goes into 4140 4 times with a remainder of 768.
Use 4 as the next digit of our solution. 
Result so far: 19951.97153024
Subtracting 3372 from 4140 leaves us with 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7680, and continue the process.

The final result is 19951.97153024 with a remainder of 7.68e-07.