We're dividing 15713871 by 18 
The aim is to understand the frequency of 18 in 15713871.

Let's proceed to step 1:
When dividing 1 by 18, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 18

On to step 2:
18 goes into 15 0 times with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Grab the next digit (7) from the dividend, add it to 15, then carry on: 157 / 18

On to step 3:
18 can be fit into 157 8 times, resulting in a remainder of 13.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 144 away from 157, we end up with 13.
Append the next digit (1) from the dividend to 13 and continue with: 131 / 18

Let's proceed to step 4:
18 can be fit into 131 7 times, resulting in a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
Subtract 126 from 131 to get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 18

Step 5:
18 can be fit into 53 2 times, resulting in a remainder of 17.
Use 2 as the next digit of our solution. 
Result so far: 872.0
The remainder is 17 after subtracting 36 from 53.
Fetch the next digit (8) from the dividend, attach it to 17 and continue: 178 / 18

Step 6:
18 can be fit into 178 9 times, resulting in a remainder of 16.
Use 9 as the next digit of our solution. 
Result so far: 8729.0
If we subtract 162 from 178, we get 16.
Bring next digit (7) of the dividend behind the 16 and repeat the process: 167 / 18

Step 7:
18 can be fit into 167 9 times, resulting in a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 87299.0
Deduct 162 from 167 and we're left with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 18

Step 8:
The number 18 fits into 51 2 times, leaving a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 872992.0
Deduct 36 from 51 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
When dividing 150 by 18, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 872992.8
Subtract 144 from 150 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
The number 18 fits into 60 3 times, leaving a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 872992.83
Subtracting 54 from 60 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 11:
18 can be fit into 60 3 times, resulting in a remainder of 6.
The next digit of our result is 3. 
Result so far: 872992.833
The remainder is 6 after subtracting 54 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The quotient of the division is 872992.833, and the remainder is 0.0006.