44470448 divided by 91 
The aim is to understand the frequency of 91 in 44470448.

Moving on to step 1:
When dividing 4 by 91, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 91

Going ahead to step 2:
91 goes into 44 0 times with a remainder of 44.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 44 and we're left with 44.
Bring next digit (4) of the dividend behind the 44 and repeat the process: 444 / 91

Let's proceed to step 3:
The number 91 fits into 444 4 times, leaving a remainder of 80.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 364 from 444 to get 80.
Fetch the next digit (7) from the dividend, attach it to 80 and continue: 807 / 91

Moving on to step 4:
If we divide 807 by 91, we get 8 and a remainder of 79.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
If we subtract 728 from 807, we get 79.
Bring next digit (0) of the dividend behind the 79 and repeat the process: 790 / 91

Going ahead to step 5:
When dividing 790 by 91, we get 8 with a remainder of 62.
Use 8 as the next digit of our solution. 
Result so far: 488.0
If we take 728 away from 790, we end up with 62.
Take the next digit (4) from the dividend and append it to 62, then repeat: 624 / 91

Moving on to step 6:
If we divide 624 by 91, we get 6 and a remainder of 78.
Put 6 as the next digit of the answer. 
Result so far: 4886.0
The remainder is 78 after subtracting 546 from 624.
Include the next digit (4) from the dividend after 78, then repeat: 784 / 91

Step 7:
If we divide 784 by 91, we get 8 and a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 48868.0
If we subtract 728 from 784, we get 56.
Include the next digit (8) from the dividend after 56, then repeat: 568 / 91

Step 8:
If we divide 568 by 91, we get 6 and a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 488686.0
The remainder is 22 after subtracting 546 from 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 9:
When dividing 220 by 91, we get 2 with a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 488686.2
The remainder is 38 after subtracting 182 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 10:
If we divide 380 by 91, we get 4 and a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 488686.24
If we take 364 away from 380, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
When dividing 160 by 91, we get 1 with a remainder of 69.
The next digit of our result is 1. 
Result so far: 488686.241
Subtracting 91 from 160 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 12:
If we divide 690 by 91, we get 7 and a remainder of 53.
Use 7 as the next digit of our solution. 
Result so far: 488686.2417
Subtracting 637 from 690 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 13:
91 goes into 530 5 times with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 488686.24175
The remainder is 75 after subtracting 455 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 14:
The number 91 fits into 750 8 times, leaving a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 488686.241758
If we take 728 away from 750, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 15:
When dividing 220 by 91, we get 2 with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 488686.2417582
Subtracting 182 from 220 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 16:
91 goes into 380 4 times with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 488686.24175824
Subtract 364 from 380 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 488686.24175824 with a remainder of 1.6e-08.