Let's divide 142444 by 91
The aim is to understand the frequency of 91 in 142444.

Advancing to step 1:
If we divide 1 by 91, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 91

Going ahead to step 2:
The number 91 fits into 14 0 times, leaving a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 14 after subtracting 0 from 14.
Append the next digit (2) from the dividend to 14 and continue with: 142 / 91

Going ahead to step 3:
When dividing 142 by 91, we get 1 with a remainder of 51.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 91 from 142 to get 51.
Grab the next digit (4) from the dividend, add it to 51, then carry on: 514 / 91

On to step 4:
When dividing 514 by 91, we get 5 with a remainder of 59.
Use 5 as the next digit of our solution. 
Result so far: 15.0
The remainder is 59 after subtracting 455 from 514.
Take the next digit (4) from the dividend and append it to 59, then repeat: 594 / 91

Moving on to step 5:
When dividing 594 by 91, we get 6 with a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 156.0
If we take 546 away from 594, we end up with 48.
Take the next digit (4) from the dividend and append it to 48, then repeat: 484 / 91

Moving on to step 6:
The number 91 fits into 484 5 times, leaving a remainder of 29.
Use 5 as the next digit of our solution. 
Result so far: 1565.0
Subtracting 455 from 484 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 7:
91 can be fit into 290 3 times, resulting in a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 1565.3
If we take 273 away from 290, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 8:
If we divide 170 by 91, we get 1 and a remainder of 79.
Put 1 as the next digit of the answer. 
Result so far: 1565.31
The remainder is 79 after subtracting 91 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Step 9:
The number 91 fits into 790 8 times, leaving a remainder of 62.
The number 8 becomes the next digit in our result. 
Result so far: 1565.318
Subtracting 728 from 790 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 10:
When dividing 620 by 91, we get 6 with a remainder of 74.
The number 6 becomes the next digit in our result. 
Result so far: 1565.3186
Subtracting 546 from 620 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 11:
If we divide 740 by 91, we get 8 and a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 1565.31868
The remainder is 12 after subtracting 728 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 12:
If we divide 120 by 91, we get 1 and a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 1565.318681
If we subtract 91 from 120, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 13:
91 can be fit into 290 3 times, resulting in a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 1565.3186813
If we take 273 away from 290, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 14:
When dividing 170 by 91, we get 1 with a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 1565.31868131
If we take 91 away from 170, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

After the division, we end up with 1565.31868131 and a remainder of 7.9e-08.