We're dividing 391088 by 89 
The aim is to understand the frequency of 89 in 391088.

Advancing to step 1:
89 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 89

Step 2:
If we divide 39 by 89, we get 0 and a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 89

On to step 3:
89 goes into 391 4 times with a remainder of 35.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 356 from 391 leaves us with 35.
Grab the next digit (0) from the dividend, add it to 35, then carry on: 350 / 89

Step 4:
When dividing 350 by 89, we get 3 with a remainder of 83.
Write down 3 as next digit of the result. 
Result so far: 43.0
Deduct 267 from 350 and we're left with 83.
Include the next digit (8) from the dividend after 83, then repeat: 838 / 89

Moving on to step 5:
838 divided by 89 is 9 with a remainder of 37.
The number 9 becomes the next digit in our result. 
Result so far: 439.0
If we subtract 801 from 838, we get 37.
Bring next digit (8) of the dividend behind the 37 and repeat the process: 378 / 89

Going ahead to step 6:
378 divided by 89 is 4 with a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 4394.0
Deduct 356 from 378 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 7:
89 can be fit into 220 2 times, resulting in a remainder of 42.
Record the quotient 2 as the next digit in the result. 
Result so far: 4394.2
Deduct 178 from 220 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 8:
When dividing 420 by 89, we get 4 with a remainder of 64.
The next digit of our result is 4. 
Result so far: 4394.24
Subtract 356 from 420 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 9:
89 goes into 640 7 times with a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 4394.247
Deduct 623 from 640 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 10:
89 can be fit into 170 1 times, resulting in a remainder of 81.
The next digit of our result is 1. 
Result so far: 4394.2471
Subtracting 89 from 170 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

On to step 11:
89 goes into 810 9 times with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 4394.24719
If we subtract 801 from 810, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 12:
If we divide 90 by 89, we get 1 and a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 4394.247191
If we take 89 away from 90, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 13:
89 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 4394.247191
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 14:
89 can be fit into 100 1 times, resulting in a remainder of 11.
The next digit of our result is 1. 
Result so far: 4394.24719101
If we take 89 away from 100, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final result is 4394.24719101 with a remainder of 1.1e-08.