91133429 divided by 286 
The aim is to understand the frequency of 286 in 91133429.

On to step 1:
9 divided by 286 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 286

Advancing to step 2:
286 goes into 91 0 times with a remainder of 91.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 91, we end up with 91.
Bring next digit (1) of the dividend behind the 91 and repeat the process: 911 / 286

On to step 3:
If we divide 911 by 286, we get 3 and a remainder of 53.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 858 from 911 and we're left with 53.
Fetch the next digit (3) from the dividend, attach it to 53 and continue: 533 / 286

Moving on to step 4:
286 goes into 533 1 times with a remainder of 247.
The next digit of our result is 1. 
Result so far: 31.0
If we subtract 286 from 533, we get 247.
Append the next digit (3) from the dividend to 247 and continue with: 2473 / 286

Going ahead to step 5:
If we divide 2473 by 286, we get 8 and a remainder of 185.
Write down 8 as next digit of the result. 
Result so far: 318.0
If we take 2288 away from 2473, we end up with 185.
Bring next digit (4) of the dividend behind the 185 and repeat the process: 1854 / 286

Let's proceed to step 6:
The number 286 fits into 1854 6 times, leaving a remainder of 138.
Record the quotient 6 as the next digit in the result. 
Result so far: 3186.0
Subtracting 1716 from 1854 leaves us with 138.
Grab the next digit (2) from the dividend, add it to 138, then carry on: 1382 / 286

Step 7:
286 can be fit into 1382 4 times, resulting in a remainder of 238.
Record the quotient 4 as the next digit in the result. 
Result so far: 31864.0
Deduct 1144 from 1382 and we're left with 238.
Take the next digit (9) from the dividend and append it to 238, then repeat: 2389 / 286

Step 8:
2389 divided by 286 is 8 with a remainder of 101.
The next digit of our result is 8. 
Result so far: 318648.0
Subtract 2288 from 2389 to get 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Advancing to step 9:
The number 286 fits into 1010 3 times, leaving a remainder of 152.
The next digit of our result is 3. 
Result so far: 318648.3
The remainder is 152 after subtracting 858 from 1010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 10:
286 can be fit into 1520 5 times, resulting in a remainder of 90.
Put 5 as the next digit of the answer. 
Result so far: 318648.35
Subtracting 1430 from 1520 leaves us with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 11:
When dividing 900 by 286, we get 3 with a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 318648.353
Subtract 858 from 900 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 12:
420 divided by 286 is 1 with a remainder of 134.
Write down 1 as next digit of the result. 
Result so far: 318648.3531
If we take 286 away from 420, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Step 13:
286 goes into 1340 4 times with a remainder of 196.
Write down 4 as next digit of the result. 
Result so far: 318648.35314
The remainder is 196 after subtracting 1144 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Let's proceed to step 14:
If we divide 1960 by 286, we get 6 and a remainder of 244.
Use 6 as the next digit of our solution. 
Result so far: 318648.353146
If we subtract 1716 from 1960, we get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

On to step 15:
2440 divided by 286 is 8 with a remainder of 152.
Record the quotient 8 as the next digit in the result. 
Result so far: 318648.3531468
Subtracting 2288 from 2440 leaves us with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Advancing to step 16:
When dividing 1520 by 286, we get 5 with a remainder of 90.
The next digit of our result is 5. 
Result so far: 318648.35314685
Deduct 1430 from 1520 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

After the division, we end up with 318648.35314685 and a remainder of 9e-08.