28439402 ÷ 191 
The aim is to understand the frequency of 191 in 28439402.

Let's proceed to step 1:
If we divide 2 by 191, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 191

Let's proceed to step 2:
When dividing 28 by 191, we get 0 with a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 28 leaves us with 28.
Fetch the next digit (4) from the dividend, attach it to 28 and continue: 284 / 191

Moving on to step 3:
284 divided by 191 is 1 with a remainder of 93.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 191 from 284 leaves us with 93.
Take the next digit (3) from the dividend and append it to 93, then repeat: 933 / 191

Let's proceed to step 4:
191 can be fit into 933 4 times, resulting in a remainder of 169.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
The remainder is 169 after subtracting 764 from 933.
Fetch the next digit (9) from the dividend, attach it to 169 and continue: 1699 / 191

On to step 5:
If we divide 1699 by 191, we get 8 and a remainder of 171.
Write down 8 as next digit of the result. 
Result so far: 148.0
If we subtract 1528 from 1699, we get 171.
Bring next digit (4) of the dividend behind the 171 and repeat the process: 1714 / 191

Let's proceed to step 6:
1714 divided by 191 is 8 with a remainder of 186.
Record the quotient 8 as the next digit in the result. 
Result so far: 1488.0
If we subtract 1528 from 1714, we get 186.
Take the next digit (0) from the dividend and append it to 186, then repeat: 1860 / 191

Going ahead to step 7:
1860 divided by 191 is 9 with a remainder of 141.
Write down 9 as next digit of the result. 
Result so far: 14889.0
Subtracting 1719 from 1860 leaves us with 141.
Append the next digit (2) from the dividend to 141 and continue with: 1412 / 191

Let's proceed to step 8:
1412 divided by 191 is 7 with a remainder of 75.
Write down 7 as next digit of the result. 
Result so far: 148897.0
If we subtract 1337 from 1412, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 9:
When dividing 750 by 191, we get 3 with a remainder of 177.
Record the quotient 3 as the next digit in the result. 
Result so far: 148897.3
Deduct 573 from 750 and we're left with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Step 10:
191 can be fit into 1770 9 times, resulting in a remainder of 51.
The next digit of our result is 9. 
Result so far: 148897.39
Subtracting 1719 from 1770 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 11:
510 divided by 191 is 2 with a remainder of 128.
Record the quotient 2 as the next digit in the result. 
Result so far: 148897.392
Subtract 382 from 510 to get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Going ahead to step 12:
1280 divided by 191 is 6 with a remainder of 134.
Use 6 as the next digit of our solution. 
Result so far: 148897.3926
If we take 1146 away from 1280, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Going ahead to step 13:
1340 divided by 191 is 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 148897.39267
The remainder is 3 after subtracting 1337 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 14:
30 divided by 191 is 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 148897.39267
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 15:
191 goes into 300 1 times with a remainder of 109.
Put 1 as the next digit of the answer. 
Result so far: 148897.3926701
The remainder is 109 after subtracting 191 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Going ahead to step 16:
191 can be fit into 1090 5 times, resulting in a remainder of 135.
Put 5 as the next digit of the answer. 
Result so far: 148897.39267015
The remainder is 135 after subtracting 955 from 1090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Our division results in 148897.39267015 with a remaining 1.35e-07.