138187 ÷ 18 
We want to figure out the number of times 138187 can be divided by 18.

Let's proceed to step 1:
The number 18 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 18

Moving on to step 2:
13 divided by 18 is 0 with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 18

On to step 3:
18 can be fit into 138 7 times, resulting in a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 126 away from 138, we end up with 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 18

Step 4:
If we divide 121 by 18, we get 6 and a remainder of 13.
The number 6 becomes the next digit in our result. 
Result so far: 76.0
If we subtract 108 from 121, we get 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 18

Moving on to step 5:
18 can be fit into 138 7 times, resulting in a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 767.0
Deduct 126 from 138 and we're left with 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 18

Advancing to step 6:
127 divided by 18 is 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 7677.0
If we subtract 126 from 127, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
18 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 7677.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
100 divided by 18 is 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 7677.05
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
The number 18 fits into 100 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 7677.055
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 7677.055 with a remaining 0.001.