We look at the division of 81281061 by 980 
The aim is to understand the frequency of 980 in 81281061.

Moving on to step 1:
If we divide 8 by 980, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 980

Advancing to step 2:
When dividing 81 by 980, we get 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Append the next digit (2) from the dividend to 81 and continue with: 812 / 980

Going ahead to step 3:
If we divide 812 by 980, we get 0 and a remainder of 812.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 812 after subtracting 0 from 812.
Append the next digit (8) from the dividend to 812 and continue with: 8128 / 980

Advancing to step 4:
980 goes into 8128 8 times with a remainder of 288.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 7840 from 8128, we get 288.
Bring next digit (1) of the dividend behind the 288 and repeat the process: 2881 / 980

Moving on to step 5:
When dividing 2881 by 980, we get 2 with a remainder of 921.
Put 2 as the next digit of the answer. 
Result so far: 82.0
If we take 1960 away from 2881, we end up with 921.
Take the next digit (0) from the dividend and append it to 921, then repeat: 9210 / 980

Moving on to step 6:
980 goes into 9210 9 times with a remainder of 390.
Write down 9 as next digit of the result. 
Result so far: 829.0
Subtracting 8820 from 9210 leaves us with 390.
Fetch the next digit (6) from the dividend, attach it to 390 and continue: 3906 / 980

Moving on to step 7:
If we divide 3906 by 980, we get 3 and a remainder of 966.
Record the quotient 3 as the next digit in the result. 
Result so far: 8293.0
If we subtract 2940 from 3906, we get 966.
Bring next digit (1) of the dividend behind the 966 and repeat the process: 9661 / 980

Advancing to step 8:
When dividing 9661 by 980, we get 9 with a remainder of 841.
The next digit of our result is 9. 
Result so far: 82939.0
If we subtract 8820 from 9661, we get 841.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8410, and continue the process.

Let's proceed to step 9:
When dividing 8410 by 980, we get 8 with a remainder of 570.
Use 8 as the next digit of our solution. 
Result so far: 82939.8
Subtracting 7840 from 8410 leaves us with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

On to step 10:
The number 980 fits into 5700 5 times, leaving a remainder of 800.
The next digit of our result is 5. 
Result so far: 82939.85
If we subtract 4900 from 5700, we get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Moving on to step 11:
980 goes into 8000 8 times with a remainder of 160.
The number 8 becomes the next digit in our result. 
Result so far: 82939.858
If we take 7840 away from 8000, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 12:
When dividing 1600 by 980, we get 1 with a remainder of 620.
Put 1 as the next digit of the answer. 
Result so far: 82939.8581
If we subtract 980 from 1600, we get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Let's proceed to step 13:
980 can be fit into 6200 6 times, resulting in a remainder of 320.
Put 6 as the next digit of the answer. 
Result so far: 82939.85816
If we take 5880 away from 6200, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 14:
980 can be fit into 3200 3 times, resulting in a remainder of 260.
Record the quotient 3 as the next digit in the result. 
Result so far: 82939.858163
Subtracting 2940 from 3200 leaves us with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 15:
2600 divided by 980 is 2 with a remainder of 640.
Use 2 as the next digit of our solution. 
Result so far: 82939.8581632
If we take 1960 away from 2600, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

On to step 16:
The number 980 fits into 6400 6 times, leaving a remainder of 520.
Use 6 as the next digit of our solution. 
Result so far: 82939.85816326
If we subtract 5880 from 6400, we get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Our division results in 82939.85816326 with a remaining 5.2e-07.