1637874 ÷ 191 
The aim is to understand the frequency of 191 in 1637874.

Moving on to step 1:
When dividing 1 by 191, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 191

Going ahead to step 2:
The number 191 fits into 16 0 times, leaving a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Append the next digit (3) from the dividend to 16 and continue with: 163 / 191

Advancing to step 3:
191 can be fit into 163 0 times, resulting in a remainder of 163.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 163 leaves us with 163.
Bring next digit (7) of the dividend behind the 163 and repeat the process: 1637 / 191

Step 4:
The number 191 fits into 1637 8 times, leaving a remainder of 109.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 109 after subtracting 1528 from 1637.
Take the next digit (8) from the dividend and append it to 109, then repeat: 1098 / 191

Moving on to step 5:
191 goes into 1098 5 times with a remainder of 143.
The number 5 becomes the next digit in our result. 
Result so far: 85.0
If we subtract 955 from 1098, we get 143.
Append the next digit (7) from the dividend to 143 and continue with: 1437 / 191

Advancing to step 6:
1437 divided by 191 is 7 with a remainder of 100.
The number 7 becomes the next digit in our result. 
Result so far: 857.0
If we take 1337 away from 1437, we end up with 100.
Append the next digit (4) from the dividend to 100 and continue with: 1004 / 191

Advancing to step 7:
When dividing 1004 by 191, we get 5 with a remainder of 49.
Put 5 as the next digit of the answer. 
Result so far: 8575.0
If we subtract 955 from 1004, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 8:
191 goes into 490 2 times with a remainder of 108.
The next digit of our result is 2. 
Result so far: 8575.2
Subtracting 382 from 490 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Advancing to step 9:
191 goes into 1080 5 times with a remainder of 125.
The next digit of our result is 5. 
Result so far: 8575.25
If we subtract 955 from 1080, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 10:
If we divide 1250 by 191, we get 6 and a remainder of 104.
The number 6 becomes the next digit in our result. 
Result so far: 8575.256
If we take 1146 away from 1250, we end up with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 11:
When dividing 1040 by 191, we get 5 with a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 8575.2565
The remainder is 85 after subtracting 955 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 12:
The number 191 fits into 850 4 times, leaving a remainder of 86.
The next digit of our result is 4. 
Result so far: 8575.25654
Deduct 764 from 850 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 13:
The number 191 fits into 860 4 times, leaving a remainder of 96.
Use 4 as the next digit of our solution. 
Result so far: 8575.256544
Deduct 764 from 860 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

The final outcome is 8575.256544, with a leftover of 9.6e-06.