50814716 divided by 91 
The aim is to understand the frequency of 91 in 50814716.

Going ahead to step 1:
5 divided by 91 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 91

Moving on to step 2:
When dividing 50 by 91, we get 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Append the next digit (8) from the dividend to 50 and continue with: 508 / 91

Going ahead to step 3:
91 can be fit into 508 5 times, resulting in a remainder of 53.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 455 from 508, we get 53.
Bring next digit (1) of the dividend behind the 53 and repeat the process: 531 / 91

On to step 4:
If we divide 531 by 91, we get 5 and a remainder of 76.
Put 5 as the next digit of the answer. 
Result so far: 55.0
Deduct 455 from 531 and we're left with 76.
Take the next digit (4) from the dividend and append it to 76, then repeat: 764 / 91

Let's proceed to step 5:
If we divide 764 by 91, we get 8 and a remainder of 36.
The next digit of our result is 8. 
Result so far: 558.0
If we take 728 away from 764, we end up with 36.
Bring next digit (7) of the dividend behind the 36 and repeat the process: 367 / 91

Moving on to step 6:
367 divided by 91 is 4 with a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 5584.0
Deduct 364 from 367 and we're left with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 91

Advancing to step 7:
When dividing 31 by 91, we get 0 with a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 55840.0
If we subtract 0 from 31, we get 31.
Append the next digit (6) from the dividend to 31 and continue with: 316 / 91

Advancing to step 8:
316 divided by 91 is 3 with a remainder of 43.
Put 3 as the next digit of the answer. 
Result so far: 558403.0
If we take 273 away from 316, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 9:
The number 91 fits into 430 4 times, leaving a remainder of 66.
Put 4 as the next digit of the answer. 
Result so far: 558403.4
Subtract 364 from 430 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 10:
When dividing 660 by 91, we get 7 with a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 558403.47
If we take 637 away from 660, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 11:
91 goes into 230 2 times with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 558403.472
If we subtract 182 from 230, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 12:
The number 91 fits into 480 5 times, leaving a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 558403.4725
If we take 455 away from 480, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 13:
91 can be fit into 250 2 times, resulting in a remainder of 68.
The next digit of our result is 2. 
Result so far: 558403.47252
Subtract 182 from 250 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 14:
The number 91 fits into 680 7 times, leaving a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 558403.472527
Subtract 637 from 680 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 15:
The number 91 fits into 430 4 times, leaving a remainder of 66.
Write down 4 as next digit of the result. 
Result so far: 558403.4725274
Subtract 364 from 430 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 16:
660 divided by 91 is 7 with a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 558403.47252747
Subtract 637 from 660 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

In conclusion, the division gives 558403.47252747 with a balance of 2.3e-08.