We look at the division of 426321 by 89 
The aim is to understand the frequency of 89 in 426321.

Advancing to step 1:
The number 89 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 89

Going ahead to step 2:
The number 89 fits into 42 0 times, leaving a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Fetch the next digit (6) from the dividend, attach it to 42 and continue: 426 / 89

Going ahead to step 3:
If we divide 426 by 89, we get 4 and a remainder of 70.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 356 from 426 leaves us with 70.
Fetch the next digit (3) from the dividend, attach it to 70 and continue: 703 / 89

Moving on to step 4:
89 goes into 703 7 times with a remainder of 80.
The next digit of our result is 7. 
Result so far: 47.0
Deduct 623 from 703 and we're left with 80.
Take the next digit (2) from the dividend and append it to 80, then repeat: 802 / 89

Going ahead to step 5:
The number 89 fits into 802 9 times, leaving a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 479.0
Subtracting 801 from 802 leaves us with 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 89

Moving on to step 6:
The number 89 fits into 11 0 times, leaving a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 4790.0
Subtract 0 from 11 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
If we divide 110 by 89, we get 1 and a remainder of 21.
The next digit of our result is 1. 
Result so far: 4790.1
If we subtract 89 from 110, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 8:
The number 89 fits into 210 2 times, leaving a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 4790.12
Subtracting 178 from 210 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
89 can be fit into 320 3 times, resulting in a remainder of 53.
Use 3 as the next digit of our solution. 
Result so far: 4790.123
Subtracting 267 from 320 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Advancing to step 10:
530 divided by 89 is 5 with a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 4790.1235
Deduct 445 from 530 and we're left with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 11:
850 divided by 89 is 9 with a remainder of 49.
Use 9 as the next digit of our solution. 
Result so far: 4790.12359
Deduct 801 from 850 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 12:
If we divide 490 by 89, we get 5 and a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 4790.123595
Subtract 445 from 490 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 13:
If we divide 450 by 89, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 4790.1235955
If we take 445 away from 450, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 4790.1235955, with a leftover of 5e-08.