873997 ÷ 12 
The aim is to understand the frequency of 12 in 873997.

On to step 1:
8 divided by 12 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 12

Going ahead to step 2:
The number 12 fits into 87 7 times, leaving a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Deduct 84 from 87 and we're left with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 12

On to step 3:
When dividing 33 by 12, we get 2 with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
The remainder is 9 after subtracting 24 from 33.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 12

Let's proceed to step 4:
The number 12 fits into 99 8 times, leaving a remainder of 3.
Use 8 as the next digit of our solution. 
Result so far: 728.0
If we subtract 96 from 99, we get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 12

Moving on to step 5:
If we divide 39 by 12, we get 3 and a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 7283.0
If we take 36 away from 39, we end up with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 12

Advancing to step 6:
If we divide 37 by 12, we get 3 and a remainder of 1.
The next digit of our result is 3. 
Result so far: 72833.0
If we take 36 away from 37, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
12 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 72833.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
When dividing 100 by 12, we get 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 72833.08
Deduct 96 from 100 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
40 divided by 12 is 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 72833.083
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 72833.0833
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 72833.0833 with a balance of 4e-05.