We're dividing 598374 by 12 
The aim is to understand the frequency of 12 in 598374.

Going ahead to step 1:
12 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 12

Going ahead to step 2:
12 can be fit into 59 4 times, resulting in a remainder of 11.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 48 from 59 and we're left with 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 12

Advancing to step 3:
If we divide 118 by 12, we get 9 and a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
The remainder is 10 after subtracting 108 from 118.
Append the next digit (3) from the dividend to 10 and continue with: 103 / 12

Advancing to step 4:
12 can be fit into 103 8 times, resulting in a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 498.0
The remainder is 7 after subtracting 96 from 103.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 12

Going ahead to step 5:
12 goes into 77 6 times with a remainder of 5.
Use 6 as the next digit of our solution. 
Result so far: 4986.0
Subtracting 72 from 77 leaves us with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 12

Step 6:
54 divided by 12 is 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 49864.0
Deduct 48 from 54 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
12 can be fit into 60 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 49864.5
Subtracting 60 from 60 leaves us 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.

Moving on to step 8:
When dividing 0 by 12, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 49864.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
12 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 49864.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 49864.5 with a remaining 0.0.