Let's divide 966643 by 86
The aim is to understand the frequency of 86 in 966643.

Advancing to step 1:
The number 86 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 86

Let's proceed to step 2:
If we divide 96 by 86, we get 1 and a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 10 after subtracting 86 from 96.
Fetch the next digit (6) from the dividend, attach it to 10 and continue: 106 / 86

Advancing to step 3:
The number 86 fits into 106 1 times, leaving a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 86 from 106 leaves us with 20.
Take the next digit (6) from the dividend and append it to 20, then repeat: 206 / 86

Going ahead to step 4:
When dividing 206 by 86, we get 2 with a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 112.0
Subtracting 172 from 206 leaves us with 34.
Append the next digit (4) from the dividend to 34 and continue with: 344 / 86

On to step 5:
86 goes into 344 4 times with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 1124.0
Deduct 344 from 344 and we're left with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 86

Moving on to step 6:
86 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 11240.0
Deduct 0 from 3 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
86 can be fit into 30 0 times, resulting in a remainder of 30.
The next digit of our result is 0. 
Result so far: 11240.0
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
The number 86 fits into 300 3 times, leaving a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 11240.03
Subtracting 258 from 300 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 9:
When dividing 420 by 86, we get 4 with a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 11240.034
If we subtract 344 from 420, 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.

Moving on to step 10:
If we divide 760 by 86, we get 8 and a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 11240.0348
Subtracting 688 from 760 leaves us 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.

On to step 11:
86 can be fit into 720 8 times, resulting in a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 11240.03488
Subtract 688 from 720 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 11240.03488, and the remainder is 3.2e-05.