Let's divide 71235487 by 864
The aim is to understand the frequency of 864 in 71235487.

Step 1:
When dividing 7 by 864, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 864

Let's proceed to step 2:
864 goes into 71 0 times with a remainder of 71.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 71 after subtracting 0 from 71.
Take the next digit (2) from the dividend and append it to 71, then repeat: 712 / 864

Advancing to step 3:
When dividing 712 by 864, we get 0 with a remainder of 712.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 712 leaves us with 712.
Fetch the next digit (3) from the dividend, attach it to 712 and continue: 7123 / 864

Advancing to step 4:
When dividing 7123 by 864, we get 8 with a remainder of 211.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 6912 from 7123 and we're left with 211.
Bring next digit (5) of the dividend behind the 211 and repeat the process: 2115 / 864

Going ahead to step 5:
The number 864 fits into 2115 2 times, leaving a remainder of 387.
The next digit of our result is 2. 
Result so far: 82.0
If we take 1728 away from 2115, we end up with 387.
Grab the next digit (4) from the dividend, add it to 387, then carry on: 3874 / 864

Moving on to step 6:
3874 divided by 864 is 4 with a remainder of 418.
Put 4 as the next digit of the answer. 
Result so far: 824.0
The remainder is 418 after subtracting 3456 from 3874.
Grab the next digit (8) from the dividend, add it to 418, then carry on: 4188 / 864

On to step 7:
The number 864 fits into 4188 4 times, leaving a remainder of 732.
Write down 4 as next digit of the result. 
Result so far: 8244.0
Subtracting 3456 from 4188 leaves us with 732.
Bring next digit (7) of the dividend behind the 732 and repeat the process: 7327 / 864

On to step 8:
The number 864 fits into 7327 8 times, leaving a remainder of 415.
The number 8 becomes the next digit in our result. 
Result so far: 82448.0
The remainder is 415 after subtracting 6912 from 7327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Step 9:
If we divide 4150 by 864, we get 4 and a remainder of 694.
Write down 4 as next digit of the result. 
Result so far: 82448.4
Deduct 3456 from 4150 and we're left with 694.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6940, and continue the process.

On to step 10:
6940 divided by 864 is 8 with a remainder of 28.
The next digit of our result is 8. 
Result so far: 82448.48
If we subtract 6912 from 6940, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 11:
864 can be fit into 280 0 times, resulting in a remainder of 280.
Record the quotient 0 as the next digit in the result. 
Result so far: 82448.48
Subtracting 0 from 280 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 12:
864 can be fit into 2800 3 times, resulting in a remainder of 208.
Put 3 as the next digit of the answer. 
Result so far: 82448.4803
Deduct 2592 from 2800 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Step 13:
The number 864 fits into 2080 2 times, leaving a remainder of 352.
Put 2 as the next digit of the answer. 
Result so far: 82448.48032
The remainder is 352 after subtracting 1728 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

On to step 14:
If we divide 3520 by 864, we get 4 and a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 82448.480324
Deduct 3456 from 3520 and we're left 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 15:
When dividing 640 by 864, we get 0 with a remainder of 640.
Use 0 as the next digit of our solution. 
Result so far: 82448.480324
If we take 0 away from 640, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

On to step 16:
864 can be fit into 6400 7 times, resulting in a remainder of 352.
The number 7 becomes the next digit in our result. 
Result so far: 82448.48032407
If we subtract 6048 from 6400, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

The final result is 82448.48032407 with a remainder of 3.52e-07.