72713542 divided by 866 
The aim is to understand the frequency of 866 in 72713542.

Moving on to step 1:
866 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 866

Let's proceed to step 2:
When dividing 72 by 866, we get 0 with a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 72, we get 72.
Take the next digit (7) from the dividend and append it to 72, then repeat: 727 / 866

On to step 3:
727 divided by 866 is 0 with a remainder of 727.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 727 and we're left with 727.
Bring next digit (1) of the dividend behind the 727 and repeat the process: 7271 / 866

Let's proceed to step 4:
7271 divided by 866 is 8 with a remainder of 343.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 343 after subtracting 6928 from 7271.
Append the next digit (3) from the dividend to 343 and continue with: 3433 / 866

Let's proceed to step 5:
When dividing 3433 by 866, we get 3 with a remainder of 835.
Use 3 as the next digit of our solution. 
Result so far: 83.0
Subtracting 2598 from 3433 leaves us with 835.
Grab the next digit (5) from the dividend, add it to 835, then carry on: 8355 / 866

Let's proceed to step 6:
The number 866 fits into 8355 9 times, leaving a remainder of 561.
Record the quotient 9 as the next digit in the result. 
Result so far: 839.0
Deduct 7794 from 8355 and we're left with 561.
Fetch the next digit (4) from the dividend, attach it to 561 and continue: 5614 / 866

Let's proceed to step 7:
When dividing 5614 by 866, we get 6 with a remainder of 418.
The next digit of our result is 6. 
Result so far: 8396.0
Subtracting 5196 from 5614 leaves us with 418.
Fetch the next digit (2) from the dividend, attach it to 418 and continue: 4182 / 866

Let's proceed to step 8:
866 goes into 4182 4 times with a remainder of 718.
The next digit of our result is 4. 
Result so far: 83964.0
If we subtract 3464 from 4182, we get 718.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7180, and continue the process.

Advancing to step 9:
866 can be fit into 7180 8 times, resulting in a remainder of 252.
Record the quotient 8 as the next digit in the result. 
Result so far: 83964.8
Deduct 6928 from 7180 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Advancing to step 10:
When dividing 2520 by 866, we get 2 with a remainder of 788.
The next digit of our result is 2. 
Result so far: 83964.82
Subtracting 1732 from 2520 leaves us with 788.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7880, and continue the process.

Step 11:
If we divide 7880 by 866, we get 9 and a remainder of 86.
Write down 9 as next digit of the result. 
Result so far: 83964.829
The remainder is 86 after subtracting 7794 from 7880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 12:
The number 866 fits into 860 0 times, leaving a remainder of 860.
Use 0 as the next digit of our solution. 
Result so far: 83964.829
If we subtract 0 from 860, we get 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8600, and continue the process.

Advancing to step 13:
8600 divided by 866 is 9 with a remainder of 806.
Put 9 as the next digit of the answer. 
Result so far: 83964.82909
Deduct 7794 from 8600 and we're left with 806.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

Step 14:
When dividing 8060 by 866, we get 9 with a remainder of 266.
Record the quotient 9 as the next digit in the result. 
Result so far: 83964.829099
If we subtract 7794 from 8060, we get 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

The final outcome is 83964.829099, with a leftover of 2.66e-05.