37562341 divided by 991 
The aim is to understand the frequency of 991 in 37562341.

Advancing to step 1:
If we divide 3 by 991, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 991

Going ahead to step 2:
991 goes into 37 0 times with a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 37 and we're left with 37.
Fetch the next digit (5) from the dividend, attach it to 37 and continue: 375 / 991

Going ahead to step 3:
375 divided by 991 is 0 with a remainder of 375.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 375 and we're left with 375.
Include the next digit (6) from the dividend after 375, then repeat: 3756 / 991

On to step 4:
991 goes into 3756 3 times with a remainder of 783.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 2973 from 3756 leaves us with 783.
Grab the next digit (2) from the dividend, add it to 783, then carry on: 7832 / 991

Going ahead to step 5:
991 can be fit into 7832 7 times, resulting in a remainder of 895.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
If we subtract 6937 from 7832, we get 895.
Append the next digit (3) from the dividend to 895 and continue with: 8953 / 991

On to step 6:
If we divide 8953 by 991, we get 9 and a remainder of 34.
Write down 9 as next digit of the result. 
Result so far: 379.0
Deduct 8919 from 8953 and we're left with 34.
Include the next digit (4) from the dividend after 34, then repeat: 344 / 991

Step 7:
991 can be fit into 344 0 times, resulting in a remainder of 344.
Put 0 as the next digit of the answer. 
Result so far: 3790.0
Subtracting 0 from 344 leaves us with 344.
Fetch the next digit (1) from the dividend, attach it to 344 and continue: 3441 / 991

On to step 8:
991 can be fit into 3441 3 times, resulting in a remainder of 468.
Record the quotient 3 as the next digit in the result. 
Result so far: 37903.0
Subtract 2973 from 3441 to get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Step 9:
The number 991 fits into 4680 4 times, leaving a remainder of 716.
The next digit of our result is 4. 
Result so far: 37903.4
Subtract 3964 from 4680 to get 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

On to step 10:
When dividing 7160 by 991, we get 7 with a remainder of 223.
Put 7 as the next digit of the answer. 
Result so far: 37903.47
If we subtract 6937 from 7160, we get 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Step 11:
The number 991 fits into 2230 2 times, leaving a remainder of 248.
Put 2 as the next digit of the answer. 
Result so far: 37903.472
Deduct 1982 from 2230 and we're left with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Going ahead to step 12:
991 goes into 2480 2 times with a remainder of 498.
Record the quotient 2 as the next digit in the result. 
Result so far: 37903.4722
If we subtract 1982 from 2480, we get 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

The final outcome is 37903.4722, with a leftover of 0.00498.