We look at the division of 81512776 by 133 
The aim is to understand the frequency of 133 in 81512776.

On to step 1:
The number 133 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 133

Going ahead to step 2:
If we divide 81 by 133, we get 0 and a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Grab the next digit (5) from the dividend, add it to 81, then carry on: 815 / 133

Let's proceed to step 3:
When dividing 815 by 133, we get 6 with a remainder of 17.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 798 from 815 and we're left with 17.
Fetch the next digit (1) from the dividend, attach it to 17 and continue: 171 / 133

Moving on to step 4:
The number 133 fits into 171 1 times, leaving a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 61.0
The remainder is 38 after subtracting 133 from 171.
Grab the next digit (2) from the dividend, add it to 38, then carry on: 382 / 133

On to step 5:
The number 133 fits into 382 2 times, leaving a remainder of 116.
Use 2 as the next digit of our solution. 
Result so far: 612.0
If we take 266 away from 382, we end up with 116.
Append the next digit (7) from the dividend to 116 and continue with: 1167 / 133

Moving on to step 6:
When dividing 1167 by 133, we get 8 with a remainder of 103.
Use 8 as the next digit of our solution. 
Result so far: 6128.0
If we take 1064 away from 1167, we end up with 103.
Bring next digit (7) of the dividend behind the 103 and repeat the process: 1037 / 133

Step 7:
The number 133 fits into 1037 7 times, leaving a remainder of 106.
Write down 7 as next digit of the result. 
Result so far: 61287.0
Subtract 931 from 1037 to get 106.
Bring next digit (6) of the dividend behind the 106 and repeat the process: 1066 / 133

Moving on to step 8:
If we divide 1066 by 133, we get 8 and a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 612878.0
If we take 1064 away from 1066, 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.

Moving on to step 9:
The number 133 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 612878.0
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.

Let's proceed to step 10:
200 divided by 133 is 1 with a remainder of 67.
Write down 1 as next digit of the result. 
Result so far: 612878.01
The remainder is 67 after subtracting 133 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 11:
If we divide 670 by 133, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 612878.015
If we take 665 away from 670, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 12:
133 goes into 50 0 times with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 612878.015
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 13:
If we divide 500 by 133, we get 3 and a remainder of 101.
The number 3 becomes the next digit in our result. 
Result so far: 612878.01503
Deduct 399 from 500 and we're left with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Going ahead to step 14:
133 goes into 1010 7 times with a remainder of 79.
Use 7 as the next digit of our solution. 
Result so far: 612878.015037
Deduct 931 from 1010 and we're left 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.

Let's proceed to step 15:
790 divided by 133 is 5 with a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 612878.0150375
If we take 665 away from 790, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 16:
1250 divided by 133 is 9 with a remainder of 53.
The next digit of our result is 9. 
Result so far: 612878.01503759
If we subtract 1197 from 1250, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

The quotient of the division is 612878.01503759, and the remainder is 5.3e-08.