We're dividing 2115188 by 15 
We want to divide 2115188 by 15.

Going ahead to step 1:
15 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 15

Advancing to step 2:
If we divide 21 by 15, we get 1 and a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 6 after subtracting 15 from 21.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 15

Advancing to step 3:
61 divided by 15 is 4 with a remainder of 1.
The next digit of our result is 4. 
Result so far: 14.0
Deduct 60 from 61 and we're left with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 15

Step 4:
When dividing 15 by 15, we get 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 141.0
The remainder is 0 after subtracting 15 from 15.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 15

Moving on to step 5:
When dividing 1 by 15, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 1410.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 15

Step 6:
If we divide 18 by 15, we get 1 and a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 14101.0
Deduct 15 from 18 and we're left with 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 15

Advancing to step 7:
If we divide 38 by 15, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 141012.0
Subtracting 30 from 38 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
When dividing 80 by 15, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 141012.5
Deduct 75 from 80 and we're left 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 9:
The number 15 fits into 50 3 times, leaving a remainder of 5.
The next digit of our result is 3. 
Result so far: 141012.53
Subtracting 45 from 50 leaves us 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 10:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 141012.533
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 141012.533 with a remainder of 0.0005.