39988993 ÷ 981 
The aim is to understand the frequency of 981 in 39988993.

Going ahead to step 1:
981 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 981

Let's proceed to step 2:
The number 981 fits into 39 0 times, leaving a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Take the next digit (9) from the dividend and append it to 39, then repeat: 399 / 981

Moving on to step 3:
If we divide 399 by 981, we get 0 and a remainder of 399.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 399 and we're left with 399.
Include the next digit (8) from the dividend after 399, then repeat: 3998 / 981

Let's proceed to step 4:
981 can be fit into 3998 4 times, resulting in a remainder of 74.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 74 after subtracting 3924 from 3998.
Bring next digit (8) of the dividend behind the 74 and repeat the process: 748 / 981

Advancing to step 5:
If we divide 748 by 981, we get 0 and a remainder of 748.
Write down 0 as next digit of the result. 
Result so far: 40.0
The remainder is 748 after subtracting 0 from 748.
Grab the next digit (9) from the dividend, add it to 748, then carry on: 7489 / 981

Moving on to step 6:
If we divide 7489 by 981, we get 7 and a remainder of 622.
The next digit of our result is 7. 
Result so far: 407.0
If we take 6867 away from 7489, we end up with 622.
Bring next digit (9) of the dividend behind the 622 and repeat the process: 6229 / 981

Advancing to step 7:
When dividing 6229 by 981, we get 6 with a remainder of 343.
Put 6 as the next digit of the answer. 
Result so far: 4076.0
If we take 5886 away from 6229, we end up with 343.
Append the next digit (3) from the dividend to 343 and continue with: 3433 / 981

Moving on to step 8:
If we divide 3433 by 981, we get 3 and a remainder of 490.
The number 3 becomes the next digit in our result. 
Result so far: 40763.0
If we subtract 2943 from 3433, we get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Moving on to step 9:
If we divide 4900 by 981, we get 4 and a remainder of 976.
Write down 4 as next digit of the result. 
Result so far: 40763.4
Deduct 3924 from 4900 and we're left with 976.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9760, and continue the process.

Going ahead to step 10:
The number 981 fits into 9760 9 times, leaving a remainder of 931.
Write down 9 as next digit of the result. 
Result so far: 40763.49
Deduct 8829 from 9760 and we're left with 931.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9310, and continue the process.

Going ahead to step 11:
If we divide 9310 by 981, we get 9 and a remainder of 481.
Write down 9 as next digit of the result. 
Result so far: 40763.499
Subtract 8829 from 9310 to get 481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

In conclusion, the division gives 40763.499 with a balance of 0.0481.