We look at the division of 16215678 by 131 
The aim is to understand the frequency of 131 in 16215678.

Step 1:
131 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 131

Let's proceed to step 2:
If we divide 16 by 131, we get 0 and a remainder of 16.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Take the next digit (2) from the dividend and append it to 16, then repeat: 162 / 131

Advancing to step 3:
If we divide 162 by 131, we get 1 and a remainder of 31.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 131 from 162 and we're left with 31.
Grab the next digit (1) from the dividend, add it to 31, then carry on: 311 / 131

Moving on to step 4:
311 divided by 131 is 2 with a remainder of 49.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 262 away from 311, we end up with 49.
Take the next digit (5) from the dividend and append it to 49, then repeat: 495 / 131

Advancing to step 5:
When dividing 495 by 131, we get 3 with a remainder of 102.
Put 3 as the next digit of the answer. 
Result so far: 123.0
If we take 393 away from 495, we end up with 102.
Include the next digit (6) from the dividend after 102, then repeat: 1026 / 131

Advancing to step 6:
If we divide 1026 by 131, we get 7 and a remainder of 109.
Put 7 as the next digit of the answer. 
Result so far: 1237.0
If we subtract 917 from 1026, we get 109.
Fetch the next digit (7) from the dividend, attach it to 109 and continue: 1097 / 131

On to step 7:
The number 131 fits into 1097 8 times, leaving a remainder of 49.
Write down 8 as next digit of the result. 
Result so far: 12378.0
The remainder is 49 after subtracting 1048 from 1097.
Take the next digit (8) from the dividend and append it to 49, then repeat: 498 / 131

Step 8:
The number 131 fits into 498 3 times, leaving a remainder of 105.
The next digit of our result is 3. 
Result so far: 123783.0
If we subtract 393 from 498, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Moving on to step 9:
The number 131 fits into 1050 8 times, leaving a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 123783.8
Deduct 1048 from 1050 and we're left 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.

On to step 10:
20 divided by 131 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 123783.8
If we subtract 0 from 20, we get 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 11:
When dividing 200 by 131, we get 1 with a remainder of 69.
The number 1 becomes the next digit in our result. 
Result so far: 123783.801
Subtracting 131 from 200 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 12:
690 divided by 131 is 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 123783.8015
The remainder is 35 after subtracting 655 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 13:
131 can be fit into 350 2 times, resulting in a remainder of 88.
Record the quotient 2 as the next digit in the result. 
Result so far: 123783.80152
The remainder is 88 after subtracting 262 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Moving on to step 14:
When dividing 880 by 131, we get 6 with a remainder of 94.
The number 6 becomes the next digit in our result. 
Result so far: 123783.801526
If we take 786 away from 880, we end up with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Step 15:
When dividing 940 by 131, we get 7 with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 123783.8015267
If we take 917 away from 940, 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 16:
When dividing 230 by 131, we get 1 with a remainder of 99.
The number 1 becomes the next digit in our result. 
Result so far: 123783.80152671
Subtract 131 from 230 to get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

The quotient of the division is 123783.80152671, and the remainder is 9.9e-08.