Let's divide 668181 by 89
The aim is to understand the frequency of 89 in 668181.

On to step 1:
89 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 89

On to step 2:
66 divided by 89 is 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Include the next digit (8) from the dividend after 66, then repeat: 668 / 89

Let's proceed to step 3:
89 goes into 668 7 times with a remainder of 45.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 623 away from 668, we end up with 45.
Include the next digit (1) from the dividend after 45, then repeat: 451 / 89

Advancing to step 4:
When dividing 451 by 89, we get 5 with a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 75.0
The remainder is 6 after subtracting 445 from 451.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 89

On to step 5:
89 can be fit into 68 0 times, resulting in a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 750.0
If we take 0 away from 68, we end up with 68.
Include the next digit (1) from the dividend after 68, then repeat: 681 / 89

Going ahead to step 6:
When dividing 681 by 89, we get 7 with a remainder of 58.
The next digit of our result is 7. 
Result so far: 7507.0
Deduct 623 from 681 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 7:
89 can be fit into 580 6 times, resulting in a remainder of 46.
Write down 6 as next digit of the result. 
Result so far: 7507.6
Subtracting 534 from 580 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 8:
When dividing 460 by 89, we get 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 7507.65
Subtract 445 from 460 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 9:
When dividing 150 by 89, we get 1 with a remainder of 61.
Put 1 as the next digit of the answer. 
Result so far: 7507.651
Subtract 89 from 150 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 10:
When dividing 610 by 89, we get 6 with a remainder of 76.
Write down 6 as next digit of the result. 
Result so far: 7507.6516
If we subtract 534 from 610, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 11:
760 divided by 89 is 8 with a remainder of 48.
The number 8 becomes the next digit in our result. 
Result so far: 7507.65168
Subtracting 712 from 760 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 12:
The number 89 fits into 480 5 times, leaving a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 7507.651685
Deduct 445 from 480 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 13:
350 divided by 89 is 3 with a remainder of 83.
Record the quotient 3 as the next digit in the result. 
Result so far: 7507.6516853
If we take 267 away from 350, we end up with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Step 14:
When dividing 830 by 89, we get 9 with a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 7507.65168539
Subtract 801 from 830 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

After the division, we end up with 7507.65168539 and a remainder of 2.9e-08.