We're dividing 90712886 by 849 
The aim is to understand the frequency of 849 in 90712886.

Moving on to step 1:
When dividing 9 by 849, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 849

On to step 2:
When dividing 90 by 849, we get 0 with a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Grab the next digit (7) from the dividend, add it to 90, then carry on: 907 / 849

Going ahead to step 3:
907 divided by 849 is 1 with a remainder of 58.
The next digit of our result is 1. 
Result so far: 1.0
If we take 849 away from 907, we end up with 58.
Fetch the next digit (1) from the dividend, attach it to 58 and continue: 581 / 849

Step 4:
When dividing 581 by 849, we get 0 with a remainder of 581.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we subtract 0 from 581, we get 581.
Grab the next digit (2) from the dividend, add it to 581, then carry on: 5812 / 849

Advancing to step 5:
849 goes into 5812 6 times with a remainder of 718.
Record the quotient 6 as the next digit in the result. 
Result so far: 106.0
If we take 5094 away from 5812, we end up with 718.
Bring next digit (8) of the dividend behind the 718 and repeat the process: 7188 / 849

Going ahead to step 6:
When dividing 7188 by 849, we get 8 with a remainder of 396.
Use 8 as the next digit of our solution. 
Result so far: 1068.0
The remainder is 396 after subtracting 6792 from 7188.
Fetch the next digit (8) from the dividend, attach it to 396 and continue: 3968 / 849

Going ahead to step 7:
If we divide 3968 by 849, we get 4 and a remainder of 572.
The next digit of our result is 4. 
Result so far: 10684.0
The remainder is 572 after subtracting 3396 from 3968.
Include the next digit (6) from the dividend after 572, then repeat: 5726 / 849

Let's proceed to step 8:
When dividing 5726 by 849, we get 6 with a remainder of 632.
Put 6 as the next digit of the answer. 
Result so far: 106846.0
If we subtract 5094 from 5726, we get 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Step 9:
The number 849 fits into 6320 7 times, leaving a remainder of 377.
Put 7 as the next digit of the answer. 
Result so far: 106846.7
Deduct 5943 from 6320 and we're left with 377.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3770, and continue the process.

Going ahead to step 10:
The number 849 fits into 3770 4 times, leaving a remainder of 374.
The number 4 becomes the next digit in our result. 
Result so far: 106846.74
Deduct 3396 from 3770 and we're left with 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Step 11:
3740 divided by 849 is 4 with a remainder of 344.
The next digit of our result is 4. 
Result so far: 106846.744
Subtract 3396 from 3740 to get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

The final result is 106846.744 with a remainder of 0.0344.