We're dividing 31634792 by 991 
The aim is to understand the frequency of 991 in 31634792.

Going ahead to step 1:
991 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 991

Going ahead to step 2:
If we divide 31 by 991, we get 0 and a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Fetch the next digit (6) from the dividend, attach it to 31 and continue: 316 / 991

Moving on to step 3:
991 goes into 316 0 times with a remainder of 316.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 316 leaves us with 316.
Fetch the next digit (3) from the dividend, attach it to 316 and continue: 3163 / 991

Step 4:
When dividing 3163 by 991, we get 3 with a remainder of 190.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 2973 from 3163, we get 190.
Take the next digit (4) from the dividend and append it to 190, then repeat: 1904 / 991

Going ahead to step 5:
991 goes into 1904 1 times with a remainder of 913.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
The remainder is 913 after subtracting 991 from 1904.
Fetch the next digit (7) from the dividend, attach it to 913 and continue: 9137 / 991

Step 6:
If we divide 9137 by 991, we get 9 and a remainder of 218.
Put 9 as the next digit of the answer. 
Result so far: 319.0
If we take 8919 away from 9137, we end up with 218.
Take the next digit (9) from the dividend and append it to 218, then repeat: 2189 / 991

On to step 7:
If we divide 2189 by 991, we get 2 and a remainder of 207.
Record the quotient 2 as the next digit in the result. 
Result so far: 3192.0
Subtracting 1982 from 2189 leaves us with 207.
Grab the next digit (2) from the dividend, add it to 207, then carry on: 2072 / 991

Going ahead to step 8:
When dividing 2072 by 991, we get 2 with a remainder of 90.
The number 2 becomes the next digit in our result. 
Result so far: 31922.0
If we take 1982 away from 2072, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Going ahead to step 9:
991 can be fit into 900 0 times, resulting in a remainder of 900.
Use 0 as the next digit of our solution. 
Result so far: 31922.0
Subtracting 0 from 900 leaves us with 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9000, and continue the process.

Moving on to step 10:
When dividing 9000 by 991, we get 9 with a remainder of 81.
The number 9 becomes the next digit in our result. 
Result so far: 31922.09
If we take 8919 away from 9000, we end up with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Going ahead to step 11:
When dividing 810 by 991, we get 0 with a remainder of 810.
The next digit of our result is 0. 
Result so far: 31922.09
Deduct 0 from 810 and we're left with 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Step 12:
991 can be fit into 8100 8 times, resulting in a remainder of 172.
The number 8 becomes the next digit in our result. 
Result so far: 31922.0908
If we subtract 7928 from 8100, we get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Moving on to step 13:
1720 divided by 991 is 1 with a remainder of 729.
Record the quotient 1 as the next digit in the result. 
Result so far: 31922.09081
Deduct 991 from 1720 and we're left with 729.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7290, and continue the process.

Let's proceed to step 14:
The number 991 fits into 7290 7 times, leaving a remainder of 353.
The number 7 becomes the next digit in our result. 
Result so far: 31922.090817
Subtract 6937 from 7290 to get 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Moving on to step 15:
If we divide 3530 by 991, we get 3 and a remainder of 557.
The next digit of our result is 3. 
Result so far: 31922.0908173
Subtract 2973 from 3530 to get 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Step 16:
If we divide 5570 by 991, we get 5 and a remainder of 615.
Use 5 as the next digit of our solution. 
Result so far: 31922.09081735
Subtracting 4955 from 5570 leaves us with 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Our division results in 31922.09081735 with a remaining 6.15e-07.