We're dividing 48870437 by 991 
The aim is to understand the frequency of 991 in 48870437.

Let's proceed to step 1:
991 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 991

Advancing to step 2:
991 can be fit into 48 0 times, resulting in a remainder of 48.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 48 and we're left with 48.
Include the next digit (8) from the dividend after 48, then repeat: 488 / 991

Advancing to step 3:
When dividing 488 by 991, we get 0 with a remainder of 488.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 488 and we're left with 488.
Bring next digit (7) of the dividend behind the 488 and repeat the process: 4887 / 991

Step 4:
When dividing 4887 by 991, we get 4 with a remainder of 923.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 3964 from 4887 and we're left with 923.
Fetch the next digit (0) from the dividend, attach it to 923 and continue: 9230 / 991

Advancing to step 5:
991 can be fit into 9230 9 times, resulting in a remainder of 311.
Write down 9 as next digit of the result. 
Result so far: 49.0
Subtracting 8919 from 9230 leaves us with 311.
Fetch the next digit (4) from the dividend, attach it to 311 and continue: 3114 / 991

On to step 6:
991 can be fit into 3114 3 times, resulting in a remainder of 141.
Write down 3 as next digit of the result. 
Result so far: 493.0
The remainder is 141 after subtracting 2973 from 3114.
Grab the next digit (3) from the dividend, add it to 141, then carry on: 1413 / 991

Let's proceed to step 7:
When dividing 1413 by 991, we get 1 with a remainder of 422.
Put 1 as the next digit of the answer. 
Result so far: 4931.0
Subtract 991 from 1413 to get 422.
Fetch the next digit (7) from the dividend, attach it to 422 and continue: 4227 / 991

Let's proceed to step 8:
4227 divided by 991 is 4 with a remainder of 263.
The next digit of our result is 4. 
Result so far: 49314.0
The remainder is 263 after subtracting 3964 from 4227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Step 9:
991 can be fit into 2630 2 times, resulting in a remainder of 648.
The next digit of our result is 2. 
Result so far: 49314.2
The remainder is 648 after subtracting 1982 from 2630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6480, and continue the process.

Let's proceed to step 10:
991 can be fit into 6480 6 times, resulting in a remainder of 534.
The next digit of our result is 6. 
Result so far: 49314.26
Subtract 5946 from 6480 to get 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Going ahead to step 11:
991 goes into 5340 5 times with a remainder of 385.
The next digit of our result is 5. 
Result so far: 49314.265
Subtract 4955 from 5340 to get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Moving on to step 12:
The number 991 fits into 3850 3 times, leaving a remainder of 877.
Use 3 as the next digit of our solution. 
Result so far: 49314.2653
The remainder is 877 after subtracting 2973 from 3850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8770, and continue the process.

Moving on to step 13:
The number 991 fits into 8770 8 times, leaving a remainder of 842.
The next digit of our result is 8. 
Result so far: 49314.26538
Deduct 7928 from 8770 and we're left with 842.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8420, and continue the process.

Moving on to step 14:
When dividing 8420 by 991, we get 8 with a remainder of 492.
The next digit of our result is 8. 
Result so far: 49314.265388
The remainder is 492 after subtracting 7928 from 8420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

The final outcome is 49314.265388, with a leftover of 4.92e-05.