56163459 divided by 91 
The aim is to understand the frequency of 91 in 56163459.

Moving on to step 1:
When dividing 5 by 91, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 91

Let's proceed to step 2:
56 divided by 91 is 0 with a remainder of 56.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 56 leaves us with 56.
Bring next digit (1) of the dividend behind the 56 and repeat the process: 561 / 91

Step 3:
91 goes into 561 6 times with a remainder of 15.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtract 546 from 561 to get 15.
Fetch the next digit (6) from the dividend, attach it to 15 and continue: 156 / 91

Let's proceed to step 4:
When dividing 156 by 91, we get 1 with a remainder of 65.
Record the quotient 1 as the next digit in the result. 
Result so far: 61.0
If we take 91 away from 156, we end up with 65.
Bring next digit (3) of the dividend behind the 65 and repeat the process: 653 / 91

Step 5:
If we divide 653 by 91, we get 7 and a remainder of 16.
The next digit of our result is 7. 
Result so far: 617.0
If we subtract 637 from 653, we get 16.
Take the next digit (4) from the dividend and append it to 16, then repeat: 164 / 91

On to step 6:
If we divide 164 by 91, we get 1 and a remainder of 73.
The number 1 becomes the next digit in our result. 
Result so far: 6171.0
If we subtract 91 from 164, we get 73.
Bring next digit (5) of the dividend behind the 73 and repeat the process: 735 / 91

Step 7:
735 divided by 91 is 8 with a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 61718.0
If we take 728 away from 735, we end up with 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 91

Step 8:
91 goes into 79 0 times with a remainder of 79.
Use 0 as the next digit of our solution. 
Result so far: 617180.0
Subtracting 0 from 79 leaves us 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.

Advancing to step 9:
790 divided by 91 is 8 with a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 617180.8
If we subtract 728 from 790, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 10:
620 divided by 91 is 6 with a remainder of 74.
The number 6 becomes the next digit in our result. 
Result so far: 617180.86
If we take 546 away from 620, we end up 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.

Going ahead to step 11:
91 goes into 740 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 617180.868
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.

Moving on to step 12:
120 divided by 91 is 1 with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 617180.8681
The remainder is 29 after subtracting 91 from 120.
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:
290 divided by 91 is 3 with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 617180.86813
The remainder is 17 after subtracting 273 from 290.
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:
91 can be fit into 170 1 times, resulting in a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 617180.868131
Subtracting 91 from 170 leaves us 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.

Going ahead to step 15:
91 can be fit into 790 8 times, resulting in a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 617180.8681318
Deduct 728 from 790 and we're left 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.

Going ahead to step 16:
620 divided by 91 is 6 with a remainder of 74.
Record the quotient 6 as the next digit in the result. 
Result so far: 617180.86813186
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.

The final result is 617180.86813186 with a remainder of 7.4e-08.