Let's divide 91816850 by 535
The aim is to understand the frequency of 535 in 91816850.

Step 1:
535 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 535

Step 2:
535 can be fit into 91 0 times, resulting in a remainder of 91.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 91 leaves us with 91.
Take the next digit (8) from the dividend and append it to 91, then repeat: 918 / 535

Advancing to step 3:
If we divide 918 by 535, we get 1 and a remainder of 383.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 535 away from 918, we end up with 383.
Fetch the next digit (1) from the dividend, attach it to 383 and continue: 3831 / 535

Advancing to step 4:
535 can be fit into 3831 7 times, resulting in a remainder of 86.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
The remainder is 86 after subtracting 3745 from 3831.
Include the next digit (6) from the dividend after 86, then repeat: 866 / 535

On to step 5:
535 can be fit into 866 1 times, resulting in a remainder of 331.
The number 1 becomes the next digit in our result. 
Result so far: 171.0
Subtracting 535 from 866 leaves us with 331.
Take the next digit (8) from the dividend and append it to 331, then repeat: 3318 / 535

Step 6:
535 goes into 3318 6 times with a remainder of 108.
Put 6 as the next digit of the answer. 
Result so far: 1716.0
Subtracting 3210 from 3318 leaves us with 108.
Include the next digit (5) from the dividend after 108, then repeat: 1085 / 535

On to step 7:
535 can be fit into 1085 2 times, resulting in a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 17162.0
Subtract 1070 from 1085 to get 15.
Take the next digit (0) from the dividend and append it to 15, then repeat: 150 / 535

Going ahead to step 8:
If we divide 150 by 535, we get 0 and a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 171620.0
Subtracting 0 from 150 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 9:
When dividing 1500 by 535, we get 2 with a remainder of 430.
The next digit of our result is 2. 
Result so far: 171620.2
If we subtract 1070 from 1500, we get 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Step 10:
If we divide 4300 by 535, we get 8 and a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 171620.28
If we take 4280 away from 4300, we end up 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.

Moving on to step 11:
535 can be fit into 200 0 times, resulting in a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 171620.28
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 12:
When dividing 2000 by 535, we get 3 with a remainder of 395.
Write down 3 as next digit of the result. 
Result so far: 171620.2803
Subtract 1605 from 2000 to get 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Going ahead to step 13:
3950 divided by 535 is 7 with a remainder of 205.
Use 7 as the next digit of our solution. 
Result so far: 171620.28037
If we take 3745 away from 3950, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Let's proceed to step 14:
535 goes into 2050 3 times with a remainder of 445.
Use 3 as the next digit of our solution. 
Result so far: 171620.280373
If we take 1605 away from 2050, we end up with 445.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Moving on to step 15:
If we divide 4450 by 535, we get 8 and a remainder of 170.
Use 8 as the next digit of our solution. 
Result so far: 171620.2803738
The remainder is 170 after subtracting 4280 from 4450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Going ahead to step 16:
535 goes into 1700 3 times with a remainder of 95.
Record the quotient 3 as the next digit in the result. 
Result so far: 171620.28037383
Deduct 1605 from 1700 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

After the division, we end up with 171620.28037383 and a remainder of 9.5e-08.