We look at the division of 35037 by 91 
The aim is to understand the frequency of 91 in 35037.

Going ahead to step 1:
91 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 91

Step 2:
35 divided by 91 is 0 with a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 35 and we're left with 35.
Grab the next digit (0) from the dividend, add it to 35, then carry on: 350 / 91

Moving on to step 3:
91 can be fit into 350 3 times, resulting in a remainder of 77.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 273 from 350 and we're left with 77.
Take the next digit (3) from the dividend and append it to 77, then repeat: 773 / 91

Going ahead to step 4:
91 goes into 773 8 times with a remainder of 45.
Write down 8 as next digit of the result. 
Result so far: 38.0
Subtract 728 from 773 to get 45.
Include the next digit (7) from the dividend after 45, then repeat: 457 / 91

Step 5:
The number 91 fits into 457 5 times, leaving a remainder of 2.
The next digit of our result is 5. 
Result so far: 385.0
If we take 455 away from 457, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 6:
20 divided by 91 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 385.0
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 7:
The number 91 fits into 200 2 times, leaving a remainder of 18.
The next digit of our result is 2. 
Result so far: 385.02
If we subtract 182 from 200, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 8:
91 goes into 180 1 times with a remainder of 89.
Use 1 as the next digit of our solution. 
Result so far: 385.021
The remainder is 89 after subtracting 91 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Advancing to step 9:
91 can be fit into 890 9 times, resulting in a remainder of 71.
The number 9 becomes the next digit in our result. 
Result so far: 385.0219
If we take 819 away from 890, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 10:
The number 91 fits into 710 7 times, leaving a remainder of 73.
Record the quotient 7 as the next digit in the result. 
Result so far: 385.02197
If we subtract 637 from 710, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 11:
730 divided by 91 is 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 385.021978
If we take 728 away from 730, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 12:
The number 91 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 385.021978
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
If we divide 200 by 91, we get 2 and a remainder of 18.
The next digit of our result is 2. 
Result so far: 385.02197802
If we subtract 182 from 200, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 385.02197802, with a leftover of 1.8e-08.