95839667 ÷ 666 
The aim is to understand the frequency of 666 in 95839667.

Step 1:
If we divide 9 by 666, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (5) from the dividend and append it to 9, then repeat: 95 / 666

Advancing to step 2:
666 goes into 95 0 times with a remainder of 95.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 95 and we're left with 95.
Take the next digit (8) from the dividend and append it to 95, then repeat: 958 / 666

Advancing to step 3:
The number 666 fits into 958 1 times, leaving a remainder of 292.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 666 from 958 leaves us with 292.
Fetch the next digit (3) from the dividend, attach it to 292 and continue: 2923 / 666

Let's proceed to step 4:
When dividing 2923 by 666, we get 4 with a remainder of 259.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtracting 2664 from 2923 leaves us with 259.
Take the next digit (9) from the dividend and append it to 259, then repeat: 2599 / 666

Step 5:
The number 666 fits into 2599 3 times, leaving a remainder of 601.
The number 3 becomes the next digit in our result. 
Result so far: 143.0
If we subtract 1998 from 2599, we get 601.
Fetch the next digit (6) from the dividend, attach it to 601 and continue: 6016 / 666

Advancing to step 6:
The number 666 fits into 6016 9 times, leaving a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 1439.0
Subtract 5994 from 6016 to get 22.
Append the next digit (6) from the dividend to 22 and continue with: 226 / 666

On to step 7:
When dividing 226 by 666, we get 0 with a remainder of 226.
Record the quotient 0 as the next digit in the result. 
Result so far: 14390.0
If we take 0 away from 226, we end up with 226.
Append the next digit (7) from the dividend to 226 and continue with: 2267 / 666

Step 8:
666 goes into 2267 3 times with a remainder of 269.
Put 3 as the next digit of the answer. 
Result so far: 143903.0
Subtracting 1998 from 2267 leaves us with 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Advancing to step 9:
When dividing 2690 by 666, we get 4 with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 143903.4
If we take 2664 away from 2690, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 10:
666 goes into 260 0 times with a remainder of 260.
The number 0 becomes the next digit in our result. 
Result so far: 143903.4
Deduct 0 from 260 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 11:
666 can be fit into 2600 3 times, resulting in a remainder of 602.
The number 3 becomes the next digit in our result. 
Result so far: 143903.403
Subtracting 1998 from 2600 leaves us with 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Going ahead to step 12:
666 goes into 6020 9 times with a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 143903.4039
Subtract 5994 from 6020 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 13:
If we divide 260 by 666, we get 0 and a remainder of 260.
Record the quotient 0 as the next digit in the result. 
Result so far: 143903.4039
If we take 0 away from 260, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

On to step 14:
If we divide 2600 by 666, we get 3 and a remainder of 602.
Record the quotient 3 as the next digit in the result. 
Result so far: 143903.403903
The remainder is 602 after subtracting 1998 from 2600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Advancing to step 15:
The number 666 fits into 6020 9 times, leaving a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 143903.4039039
Subtracting 5994 from 6020 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 16:
If we divide 260 by 666, we get 0 and a remainder of 260.
Put 0 as the next digit of the answer. 
Result so far: 143903.4039039
Subtract 0 from 260 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

After the division, we end up with 143903.4039039 and a remainder of 2.6e-07.