445510 divided by 91 
The aim is to understand the frequency of 91 in 445510.

Let's proceed to step 1:
4 divided by 91 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 91

Let's proceed to step 2:
44 divided by 91 is 0 with a remainder of 44.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 44, we get 44.
Fetch the next digit (5) from the dividend, attach it to 44 and continue: 445 / 91

Moving on to step 3:
If we divide 445 by 91, we get 4 and a remainder of 81.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 364 away from 445, we end up with 81.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 91

On to step 4:
91 can be fit into 815 8 times, resulting in a remainder of 87.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
If we take 728 away from 815, we end up with 87.
Include the next digit (1) from the dividend after 87, then repeat: 871 / 91

Let's proceed to step 5:
91 goes into 871 9 times with a remainder of 52.
The number 9 becomes the next digit in our result. 
Result so far: 489.0
The remainder is 52 after subtracting 819 from 871.
Append the next digit (0) from the dividend to 52 and continue with: 520 / 91

On to step 6:
If we divide 520 by 91, we get 5 and a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 4895.0
Subtract 455 from 520 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 7:
91 goes into 650 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 4895.7
If we take 637 away from 650, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 8:
If we divide 130 by 91, we get 1 and a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 4895.71
Subtract 91 from 130 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 9:
91 can be fit into 390 4 times, resulting in a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 4895.714
Subtract 364 from 390 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 10:
The number 91 fits into 260 2 times, leaving a remainder of 78.
Use 2 as the next digit of our solution. 
Result so far: 4895.7142
If we subtract 182 from 260, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 11:
If we divide 780 by 91, we get 8 and a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 4895.71428
If we subtract 728 from 780, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 12:
520 divided by 91 is 5 with a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 4895.714285
Subtract 455 from 520 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 13:
When dividing 650 by 91, we get 7 with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 4895.7142857
If we take 637 away from 650, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 14:
130 divided by 91 is 1 with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 4895.71428571
If we take 91 away from 130, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Our division results in 4895.71428571 with a remaining 3.9e-08.