Let's divide 666913 by 86
The aim is to understand the frequency of 86 in 666913.

Let's proceed to step 1:
If we divide 6 by 86, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 86

Going ahead to step 2:
When dividing 66 by 86, we get 0 with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Take the next digit (6) from the dividend and append it to 66, then repeat: 666 / 86

On to step 3:
If we divide 666 by 86, we get 7 and a remainder of 64.
Write down 7 as next digit of the result. 
Result so far: 7.0
The remainder is 64 after subtracting 602 from 666.
Include the next digit (9) from the dividend after 64, then repeat: 649 / 86

Moving on to step 4:
86 goes into 649 7 times with a remainder of 47.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
The remainder is 47 after subtracting 602 from 649.
Bring next digit (1) of the dividend behind the 47 and repeat the process: 471 / 86

Advancing to step 5:
86 goes into 471 5 times with a remainder of 41.
Put 5 as the next digit of the answer. 
Result so far: 775.0
If we take 430 away from 471, we end up with 41.
Fetch the next digit (3) from the dividend, attach it to 41 and continue: 413 / 86

Going ahead to step 6:
86 can be fit into 413 4 times, resulting in a remainder of 69.
Use 4 as the next digit of our solution. 
Result so far: 7754.0
Deduct 344 from 413 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 7:
If we divide 690 by 86, we get 8 and a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 7754.8
Subtracting 688 from 690 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
86 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 7754.8
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
200 divided by 86 is 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 7754.802
Deduct 172 from 200 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.

Advancing to step 10:
86 can be fit into 280 3 times, resulting in a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 7754.8023
If we take 258 away from 280, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 11:
When dividing 220 by 86, we get 2 with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 7754.80232
Subtracting 172 from 220 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 86 fits into 480 5 times, leaving a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 7754.802325
Subtracting 430 from 480 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 13:
If we divide 500 by 86, we get 5 and a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 7754.8023255
The remainder is 70 after subtracting 430 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 7754.8023255 and a remainder of 7e-07.