668504 ÷ 89 
The aim is to understand the frequency of 89 in 668504.

Going ahead to step 1:
The number 89 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 89

Let's proceed to step 2:
The number 89 fits into 66 0 times, leaving a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Fetch the next digit (8) from the dividend, attach it to 66 and continue: 668 / 89

Going ahead to step 3:
89 can be fit into 668 7 times, resulting in a remainder of 45.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 623 from 668 and we're left with 45.
Take the next digit (5) from the dividend and append it to 45, then repeat: 455 / 89

Advancing to step 4:
The number 89 fits into 455 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 75.0
Subtracting 445 from 455 leaves us with 10.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 89

Advancing to step 5:
89 goes into 100 1 times with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 751.0
Subtract 89 from 100 to get 11.
Grab the next digit (4) from the dividend, add it to 11, then carry on: 114 / 89

Moving on to step 6:
114 divided by 89 is 1 with a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 7511.0
The remainder is 25 after subtracting 89 from 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 7:
When dividing 250 by 89, we get 2 with a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 7511.2
Deduct 178 from 250 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 8:
720 divided by 89 is 8 with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 7511.28
Deduct 712 from 720 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
When dividing 80 by 89, we get 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 7511.28
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 10:
If we divide 800 by 89, we get 8 and a remainder of 88.
Write down 8 as next digit of the result. 
Result so far: 7511.2808
The remainder is 88 after subtracting 712 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Moving on to step 11:
When dividing 880 by 89, we get 9 with a remainder of 79.
Record the quotient 9 as the next digit in the result. 
Result so far: 7511.28089
If we subtract 801 from 880, we get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Step 12:
790 divided by 89 is 8 with a remainder of 78.
Put 8 as the next digit of the answer. 
Result so far: 7511.280898
If we take 712 away from 790, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 13:
When dividing 780 by 89, we get 8 with a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 7511.2808988
Subtracting 712 from 780 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Our division results in 7511.2808988 with a remaining 6.8e-07.