We divide 638479 by 89
The aim is to understand the frequency of 89 in 638479.

Step 1:
89 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 89

Advancing to step 2:
63 divided by 89 is 0 with a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Append the next digit (8) from the dividend to 63 and continue with: 638 / 89

Advancing to step 3:
When dividing 638 by 89, we get 7 with a remainder of 15.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 15 after subtracting 623 from 638.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 89

Going ahead to step 4:
If we divide 154 by 89, we get 1 and a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 71.0
Deduct 89 from 154 and we're left with 65.
Take the next digit (7) from the dividend and append it to 65, then repeat: 657 / 89

Moving on to step 5:
89 can be fit into 657 7 times, resulting in a remainder of 34.
Write down 7 as next digit of the result. 
Result so far: 717.0
The remainder is 34 after subtracting 623 from 657.
Grab the next digit (9) from the dividend, add it to 34, then carry on: 349 / 89

Advancing to step 6:
When dividing 349 by 89, we get 3 with a remainder of 82.
Write down 3 as next digit of the result. 
Result so far: 7173.0
Subtract 267 from 349 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 7:
The number 89 fits into 820 9 times, leaving a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 7173.9
The remainder is 19 after subtracting 801 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 8:
The number 89 fits into 190 2 times, leaving a remainder of 12.
The next digit of our result is 2. 
Result so far: 7173.92
Subtracting 178 from 190 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
120 divided by 89 is 1 with a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 7173.921
Subtracting 89 from 120 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 10:
The number 89 fits into 310 3 times, leaving a remainder of 43.
The next digit of our result is 3. 
Result so far: 7173.9213
Subtracting 267 from 310 leaves us 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.

Step 11:
430 divided by 89 is 4 with a remainder of 74.
The number 4 becomes the next digit in our result. 
Result so far: 7173.92134
Subtract 356 from 430 to get 74.
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 12:
The number 89 fits into 740 8 times, leaving a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 7173.921348
Deduct 712 from 740 and we're left 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.

Let's proceed to step 13:
89 goes into 280 3 times with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 7173.9213483
Subtract 267 from 280 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 14:
If we divide 130 by 89, we get 1 and a remainder of 41.
Put 1 as the next digit of the answer. 
Result so far: 7173.92134831
If we subtract 89 from 130, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Our division results in 7173.92134831 with a remaining 4.1e-08.