Let's divide 83981831 by 819
The aim is to understand the frequency of 819 in 83981831.

Moving on to step 1:
When dividing 8 by 819, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 819

Moving on to step 2:
83 divided by 819 is 0 with a remainder of 83.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 83 to get 83.
Grab the next digit (9) from the dividend, add it to 83, then carry on: 839 / 819

Moving on to step 3:
If we divide 839 by 819, we get 1 and a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 819 from 839 and we're left with 20.
Include the next digit (8) from the dividend after 20, then repeat: 208 / 819

Going ahead to step 4:
The number 819 fits into 208 0 times, leaving a remainder of 208.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 208 and we're left with 208.
Fetch the next digit (1) from the dividend, attach it to 208 and continue: 2081 / 819

Advancing to step 5:
819 can be fit into 2081 2 times, resulting in a remainder of 443.
Write down 2 as next digit of the result. 
Result so far: 102.0
If we take 1638 away from 2081, we end up with 443.
Grab the next digit (8) from the dividend, add it to 443, then carry on: 4438 / 819

Let's proceed to step 6:
4438 divided by 819 is 5 with a remainder of 343.
The next digit of our result is 5. 
Result so far: 1025.0
Subtracting 4095 from 4438 leaves us with 343.
Fetch the next digit (3) from the dividend, attach it to 343 and continue: 3433 / 819

Step 7:
If we divide 3433 by 819, we get 4 and a remainder of 157.
The next digit of our result is 4. 
Result so far: 10254.0
If we take 3276 away from 3433, we end up with 157.
Grab the next digit (1) from the dividend, add it to 157, then carry on: 1571 / 819

Going ahead to step 8:
819 goes into 1571 1 times with a remainder of 752.
Write down 1 as next digit of the result. 
Result so far: 102541.0
If we take 819 away from 1571, we end up with 752.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7520, and continue the process.

On to step 9:
819 goes into 7520 9 times with a remainder of 149.
Use 9 as the next digit of our solution. 
Result so far: 102541.9
If we take 7371 away from 7520, we end up with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Going ahead to step 10:
1490 divided by 819 is 1 with a remainder of 671.
Put 1 as the next digit of the answer. 
Result so far: 102541.91
Deduct 819 from 1490 and we're left with 671.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6710, and continue the process.

On to step 11:
When dividing 6710 by 819, we get 8 with a remainder of 158.
Use 8 as the next digit of our solution. 
Result so far: 102541.918
Subtract 6552 from 6710 to get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Going ahead to step 12:
819 can be fit into 1580 1 times, resulting in a remainder of 761.
Use 1 as the next digit of our solution. 
Result so far: 102541.9181
If we subtract 819 from 1580, we get 761.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7610, and continue the process.

Advancing to step 13:
819 can be fit into 7610 9 times, resulting in a remainder of 239.
Write down 9 as next digit of the result. 
Result so far: 102541.91819
If we subtract 7371 from 7610, we get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Let's proceed to step 14:
2390 divided by 819 is 2 with a remainder of 752.
Write down 2 as next digit of the result. 
Result so far: 102541.918192
If we subtract 1638 from 2390, we get 752.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7520, and continue the process.

Advancing to step 15:
7520 divided by 819 is 9 with a remainder of 149.
Put 9 as the next digit of the answer. 
Result so far: 102541.9181929
If we take 7371 away from 7520, we end up with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Going ahead to step 16:
If we divide 1490 by 819, we get 1 and a remainder of 671.
Use 1 as the next digit of our solution. 
Result so far: 102541.91819291
If we subtract 819 from 1490, we get 671.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6710, and continue the process.

The final outcome is 102541.91819291, with a leftover of 6.71e-07.