We look at the division of 12390884 by 982 
The aim is to understand the frequency of 982 in 12390884.

Let's proceed to step 1:
982 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 982

Moving on to step 2:
If we divide 12 by 982, we get 0 and a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 982

Step 3:
The number 982 fits into 123 0 times, leaving a remainder of 123.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 123, we end up with 123.
Grab the next digit (9) from the dividend, add it to 123, then carry on: 1239 / 982

Going ahead to step 4:
When dividing 1239 by 982, we get 1 with a remainder of 257.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 982 from 1239 to get 257.
Include the next digit (0) from the dividend after 257, then repeat: 2570 / 982

Going ahead to step 5:
982 can be fit into 2570 2 times, resulting in a remainder of 606.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 1964 from 2570 leaves us with 606.
Include the next digit (8) from the dividend after 606, then repeat: 6068 / 982

Moving on to step 6:
When dividing 6068 by 982, we get 6 with a remainder of 176.
The number 6 becomes the next digit in our result. 
Result so far: 126.0
Subtracting 5892 from 6068 leaves us with 176.
Fetch the next digit (8) from the dividend, attach it to 176 and continue: 1768 / 982

On to step 7:
1768 divided by 982 is 1 with a remainder of 786.
The next digit of our result is 1. 
Result so far: 1261.0
Subtracting 982 from 1768 leaves us with 786.
Fetch the next digit (4) from the dividend, attach it to 786 and continue: 7864 / 982

Going ahead to step 8:
982 can be fit into 7864 8 times, resulting in a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 12618.0
The remainder is 8 after subtracting 7856 from 7864.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 9:
982 goes into 80 0 times with a remainder of 80.
The next digit of our result is 0. 
Result so far: 12618.0
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 10:
982 can be fit into 800 0 times, resulting in a remainder of 800.
The number 0 becomes the next digit in our result. 
Result so far: 12618.0
If we take 0 away from 800, we end up with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

The final result is 12618.0 with a remainder of 0.8.