We look at the division of 36635457 by 980 
The aim is to understand the frequency of 980 in 36635457.

On to step 1:
When dividing 3 by 980, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 980

Step 2:
980 goes into 36 0 times with a remainder of 36.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 36, we get 36.
Grab the next digit (6) from the dividend, add it to 36, then carry on: 366 / 980

On to step 3:
366 divided by 980 is 0 with a remainder of 366.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 366 to get 366.
Bring next digit (3) of the dividend behind the 366 and repeat the process: 3663 / 980

Advancing to step 4:
When dividing 3663 by 980, we get 3 with a remainder of 723.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 723 after subtracting 2940 from 3663.
Grab the next digit (5) from the dividend, add it to 723, then carry on: 7235 / 980

Step 5:
7235 divided by 980 is 7 with a remainder of 375.
Use 7 as the next digit of our solution. 
Result so far: 37.0
If we subtract 6860 from 7235, we get 375.
Bring next digit (4) of the dividend behind the 375 and repeat the process: 3754 / 980

Advancing to step 6:
When dividing 3754 by 980, we get 3 with a remainder of 814.
The number 3 becomes the next digit in our result. 
Result so far: 373.0
The remainder is 814 after subtracting 2940 from 3754.
Append the next digit (5) from the dividend to 814 and continue with: 8145 / 980

Step 7:
8145 divided by 980 is 8 with a remainder of 305.
Record the quotient 8 as the next digit in the result. 
Result so far: 3738.0
The remainder is 305 after subtracting 7840 from 8145.
Grab the next digit (7) from the dividend, add it to 305, then carry on: 3057 / 980

Step 8:
The number 980 fits into 3057 3 times, leaving a remainder of 117.
Write down 3 as next digit of the result. 
Result so far: 37383.0
If we subtract 2940 from 3057, we get 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

On to step 9:
1170 divided by 980 is 1 with a remainder of 190.
Write down 1 as next digit of the result. 
Result so far: 37383.1
Subtract 980 from 1170 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 10:
When dividing 1900 by 980, we get 1 with a remainder of 920.
Write down 1 as next digit of the result. 
Result so far: 37383.11
Deduct 980 from 1900 and we're left with 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9200, and continue the process.

The final outcome is 37383.11, with a leftover of 0.92.