We look at the division of 812435 by 89 
The aim is to understand the frequency of 89 in 812435.

On to step 1:
When dividing 8 by 89, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 89

Let's proceed to step 2:
If we divide 81 by 89, we get 0 and a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Fetch the next digit (2) from the dividend, attach it to 81 and continue: 812 / 89

Advancing to step 3:
89 goes into 812 9 times with a remainder of 11.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 801 from 812 to get 11.
Take the next digit (4) from the dividend and append it to 11, then repeat: 114 / 89

Going ahead to step 4:
114 divided by 89 is 1 with a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 91.0
The remainder is 25 after subtracting 89 from 114.
Bring next digit (3) of the dividend behind the 25 and repeat the process: 253 / 89

Moving on to step 5:
If we divide 253 by 89, we get 2 and a remainder of 75.
The number 2 becomes the next digit in our result. 
Result so far: 912.0
The remainder is 75 after subtracting 178 from 253.
Fetch the next digit (5) from the dividend, attach it to 75 and continue: 755 / 89

Let's proceed to step 6:
The number 89 fits into 755 8 times, leaving a remainder of 43.
Put 8 as the next digit of the answer. 
Result so far: 9128.0
Deduct 712 from 755 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 7:
89 goes into 430 4 times with a remainder of 74.
Use 4 as the next digit of our solution. 
Result so far: 9128.4
The remainder is 74 after subtracting 356 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 8:
740 divided by 89 is 8 with a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 9128.48
If we take 712 away from 740, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
89 goes into 280 3 times with a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 9128.483
The remainder is 13 after subtracting 267 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 10:
89 goes into 130 1 times with a remainder of 41.
Write down 1 as next digit of the result. 
Result so far: 9128.4831
Subtracting 89 from 130 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 11:
When dividing 410 by 89, we get 4 with a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 9128.48314
If we subtract 356 from 410, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 12:
When dividing 540 by 89, we get 6 with a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 9128.483146
Subtract 534 from 540 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
89 goes into 60 0 times with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 9128.483146
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 14:
The number 89 fits into 600 6 times, leaving a remainder of 66.
The next digit of our result is 6. 
Result so far: 9128.48314606
The remainder is 66 after subtracting 534 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final result is 9128.48314606 with a remainder of 6.6e-08.