Let's divide 578811 by 12
The aim is to understand the frequency of 12 in 578811.

Moving on to step 1:
If we divide 5 by 12, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 12

Going ahead to step 2:
12 can be fit into 57 4 times, resulting in a remainder of 9.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 48 away from 57, we end up with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 12

Moving on to step 3:
12 can be fit into 98 8 times, resulting in a remainder of 2.
The next digit of our result is 8. 
Result so far: 48.0
Deduct 96 from 98 and we're left with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 12

Let's proceed to step 4:
When dividing 28 by 12, we get 2 with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 482.0
Deduct 24 from 28 and we're left with 4.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 12

Advancing to step 5:
41 divided by 12 is 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 4823.0
Subtract 36 from 41 to get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 12

Advancing to step 6:
When dividing 51 by 12, we get 4 with a remainder of 3.
The next digit of our result is 4. 
Result so far: 48234.0
Deduct 48 from 51 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.

Advancing to step 7:
The number 12 fits into 30 2 times, leaving a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 48234.2
The remainder is 6 after subtracting 24 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
12 goes into 60 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 48234.25
The remainder is 0 after subtracting 60 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
When dividing 0 by 12, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 48234.25
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
If we divide 0 by 12, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 48234.25
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 48234.25 with a remainder of 0.0.