66916199 divided by 289 
The aim is to understand the frequency of 289 in 66916199.

Going ahead to step 1:
6 divided by 289 is 0 with 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.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 289

Let's proceed to step 2:
If we divide 66 by 289, we get 0 and a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Include the next digit (9) from the dividend after 66, then repeat: 669 / 289

Let's proceed to step 3:
669 divided by 289 is 2 with a remainder of 91.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 578 from 669 leaves us with 91.
Fetch the next digit (1) from the dividend, attach it to 91 and continue: 911 / 289

On to step 4:
When dividing 911 by 289, we get 3 with a remainder of 44.
Use 3 as the next digit of our solution. 
Result so far: 23.0
Subtract 867 from 911 to get 44.
Include the next digit (6) from the dividend after 44, then repeat: 446 / 289

Moving on to step 5:
The number 289 fits into 446 1 times, leaving a remainder of 157.
The number 1 becomes the next digit in our result. 
Result so far: 231.0
The remainder is 157 after subtracting 289 from 446.
Bring next digit (1) of the dividend behind the 157 and repeat the process: 1571 / 289

Step 6:
The number 289 fits into 1571 5 times, leaving a remainder of 126.
The number 5 becomes the next digit in our result. 
Result so far: 2315.0
Subtract 1445 from 1571 to get 126.
Fetch the next digit (9) from the dividend, attach it to 126 and continue: 1269 / 289

Let's proceed to step 7:
The number 289 fits into 1269 4 times, leaving a remainder of 113.
The number 4 becomes the next digit in our result. 
Result so far: 23154.0
If we take 1156 away from 1269, we end up with 113.
Append the next digit (9) from the dividend to 113 and continue with: 1139 / 289

On to step 8:
289 goes into 1139 3 times with a remainder of 272.
The next digit of our result is 3. 
Result so far: 231543.0
If we take 867 away from 1139, we end up with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Advancing to step 9:
289 can be fit into 2720 9 times, resulting in a remainder of 119.
Put 9 as the next digit of the answer. 
Result so far: 231543.9
If we subtract 2601 from 2720, we get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Step 10:
The number 289 fits into 1190 4 times, leaving a remainder of 34.
The next digit of our result is 4. 
Result so far: 231543.94
The remainder is 34 after subtracting 1156 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 11:
340 divided by 289 is 1 with a remainder of 51.
The next digit of our result is 1. 
Result so far: 231543.941
If we subtract 289 from 340, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 12:
The number 289 fits into 510 1 times, leaving a remainder of 221.
Use 1 as the next digit of our solution. 
Result so far: 231543.9411
Deduct 289 from 510 and we're left with 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Our division results in 231543.9411 with a remaining 0.00221.