81534453 ÷ 849 
The aim is to understand the frequency of 849 in 81534453.

Moving on to step 1:
8 divided by 849 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 849

Moving on to step 2:
849 goes into 81 0 times with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Take the next digit (5) from the dividend and append it to 81, then repeat: 815 / 849

Going ahead to step 3:
815 divided by 849 is 0 with a remainder of 815.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 815 leaves us with 815.
Include the next digit (3) from the dividend after 815, then repeat: 8153 / 849

On to step 4:
The number 849 fits into 8153 9 times, leaving a remainder of 512.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 7641 from 8153 leaves us with 512.
Append the next digit (4) from the dividend to 512 and continue with: 5124 / 849

Moving on to step 5:
849 goes into 5124 6 times with a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 96.0
Deduct 5094 from 5124 and we're left with 30.
Bring next digit (4) of the dividend behind the 30 and repeat the process: 304 / 849

On to step 6:
If we divide 304 by 849, we get 0 and a remainder of 304.
Record the quotient 0 as the next digit in the result. 
Result so far: 960.0
The remainder is 304 after subtracting 0 from 304.
Append the next digit (5) from the dividend to 304 and continue with: 3045 / 849

Moving on to step 7:
The number 849 fits into 3045 3 times, leaving a remainder of 498.
Write down 3 as next digit of the result. 
Result so far: 9603.0
Deduct 2547 from 3045 and we're left with 498.
Bring next digit (3) of the dividend behind the 498 and repeat the process: 4983 / 849

Advancing to step 8:
If we divide 4983 by 849, we get 5 and a remainder of 738.
Write down 5 as next digit of the result. 
Result so far: 96035.0
Subtract 4245 from 4983 to get 738.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7380, and continue the process.

Going ahead to step 9:
849 can be fit into 7380 8 times, resulting in a remainder of 588.
The number 8 becomes the next digit in our result. 
Result so far: 96035.8
If we take 6792 away from 7380, we end up with 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Let's proceed to step 10:
When dividing 5880 by 849, we get 6 with a remainder of 786.
Use 6 as the next digit of our solution. 
Result so far: 96035.86
The remainder is 786 after subtracting 5094 from 5880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7860, and continue the process.

Advancing to step 11:
7860 divided by 849 is 9 with a remainder of 219.
Write down 9 as next digit of the result. 
Result so far: 96035.869
Deduct 7641 from 7860 and we're left with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Going ahead to step 12:
When dividing 2190 by 849, we get 2 with a remainder of 492.
Record the quotient 2 as the next digit in the result. 
Result so far: 96035.8692
The remainder is 492 after subtracting 1698 from 2190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Advancing to step 13:
The number 849 fits into 4920 5 times, leaving a remainder of 675.
The number 5 becomes the next digit in our result. 
Result so far: 96035.86925
The remainder is 675 after subtracting 4245 from 4920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

Going ahead to step 14:
When dividing 6750 by 849, we get 7 with a remainder of 807.
Write down 7 as next digit of the result. 
Result so far: 96035.869257
If we subtract 5943 from 6750, we get 807.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8070, and continue the process.

Advancing to step 15:
849 can be fit into 8070 9 times, resulting in a remainder of 429.
The next digit of our result is 9. 
Result so far: 96035.8692579
Subtract 7641 from 8070 to get 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Step 16:
If we divide 4290 by 849, we get 5 and a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 96035.86925795
Deduct 4245 from 4290 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

The final result is 96035.86925795 with a remainder of 4.5e-08.