We look at the division of 81084993 by 983 
The aim is to understand the frequency of 983 in 81084993.

Step 1:
983 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 983

Advancing to step 2:
81 divided by 983 is 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Take the next digit (0) from the dividend and append it to 81, then repeat: 810 / 983

Going ahead to step 3:
The number 983 fits into 810 0 times, leaving a remainder of 810.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 810 and we're left with 810.
Bring next digit (8) of the dividend behind the 810 and repeat the process: 8108 / 983

Advancing to step 4:
983 goes into 8108 8 times with a remainder of 244.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 7864 from 8108 to get 244.
Bring next digit (4) of the dividend behind the 244 and repeat the process: 2444 / 983

Going ahead to step 5:
When dividing 2444 by 983, we get 2 with a remainder of 478.
Use 2 as the next digit of our solution. 
Result so far: 82.0
Subtracting 1966 from 2444 leaves us with 478.
Fetch the next digit (9) from the dividend, attach it to 478 and continue: 4789 / 983

Going ahead to step 6:
4789 divided by 983 is 4 with a remainder of 857.
The next digit of our result is 4. 
Result so far: 824.0
Subtracting 3932 from 4789 leaves us with 857.
Append the next digit (9) from the dividend to 857 and continue with: 8579 / 983

On to step 7:
983 can be fit into 8579 8 times, resulting in a remainder of 715.
Record the quotient 8 as the next digit in the result. 
Result so far: 8248.0
Subtracting 7864 from 8579 leaves us with 715.
Bring next digit (3) of the dividend behind the 715 and repeat the process: 7153 / 983

On to step 8:
7153 divided by 983 is 7 with a remainder of 272.
Put 7 as the next digit of the answer. 
Result so far: 82487.0
Subtracting 6881 from 7153 leaves us with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Advancing to step 9:
983 goes into 2720 2 times with a remainder of 754.
The number 2 becomes the next digit in our result. 
Result so far: 82487.2
Deduct 1966 from 2720 and we're left with 754.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7540, and continue the process.

Let's proceed to step 10:
If we divide 7540 by 983, we get 7 and a remainder of 659.
The number 7 becomes the next digit in our result. 
Result so far: 82487.27
Subtract 6881 from 7540 to get 659.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6590, and continue the process.

Step 11:
983 goes into 6590 6 times with a remainder of 692.
The number 6 becomes the next digit in our result. 
Result so far: 82487.276
Subtract 5898 from 6590 to get 692.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6920, and continue the process.

Going ahead to step 12:
When dividing 6920 by 983, we get 7 with a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 82487.2767
Subtracting 6881 from 6920 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 13:
983 goes into 390 0 times with a remainder of 390.
Record the quotient 0 as the next digit in the result. 
Result so far: 82487.2767
If we subtract 0 from 390, we get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Moving on to step 14:
3900 divided by 983 is 3 with a remainder of 951.
The number 3 becomes the next digit in our result. 
Result so far: 82487.276703
Deduct 2949 from 3900 and we're left with 951.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9510, and continue the process.

Advancing to step 15:
The number 983 fits into 9510 9 times, leaving a remainder of 663.
Write down 9 as next digit of the result. 
Result so far: 82487.2767039
The remainder is 663 after subtracting 8847 from 9510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6630, and continue the process.

Step 16:
983 can be fit into 6630 6 times, resulting in a remainder of 732.
The next digit of our result is 6. 
Result so far: 82487.27670396
Subtract 5898 from 6630 to get 732.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7320, and continue the process.

The final result is 82487.27670396 with a remainder of 7.32e-07.