86091 ÷ 73 
The aim is to understand the frequency of 73 in 86091.

Let's proceed to step 1:
73 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 73

On to step 2:
73 can be fit into 86 1 times, resulting in a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 73 from 86 and we're left with 13.
Fetch the next digit (0) from the dividend, attach it to 13 and continue: 130 / 73

Step 3:
73 goes into 130 1 times with a remainder of 57.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Deduct 73 from 130 and we're left with 57.
Append the next digit (9) from the dividend to 57 and continue with: 579 / 73

On to step 4:
The number 73 fits into 579 7 times, leaving a remainder of 68.
The number 7 becomes the next digit in our result. 
Result so far: 117.0
If we take 511 away from 579, we end up with 68.
Take the next digit (1) from the dividend and append it to 68, then repeat: 681 / 73

Let's proceed to step 5:
When dividing 681 by 73, we get 9 with a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 1179.0
Subtract 657 from 681 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 6:
When dividing 240 by 73, we get 3 with a remainder of 21.
The next digit of our result is 3. 
Result so far: 1179.3
Subtracting 219 from 240 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 7:
210 divided by 73 is 2 with a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 1179.32
Subtracting 146 from 210 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 8:
When dividing 640 by 73, we get 8 with a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 1179.328
If we subtract 584 from 640, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 9:
The number 73 fits into 560 7 times, leaving a remainder of 49.
Use 7 as the next digit of our solution. 
Result so far: 1179.3287
Deduct 511 from 560 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 10:
The number 73 fits into 490 6 times, leaving a remainder of 52.
Record the quotient 6 as the next digit in the result. 
Result so far: 1179.32876
If we take 438 away from 490, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 11:
520 divided by 73 is 7 with a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 1179.328767
If we take 511 away from 520, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 12:
When dividing 90 by 73, we get 1 with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1179.3287671
Deduct 73 from 90 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 13:
When dividing 170 by 73, we get 2 with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 1179.32876712
Deduct 146 from 170 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Our division results in 1179.32876712 with a remaining 2.4e-08.