We're dividing 12185878 by 57 
Let's see how many times 57 fits into 12185878.

Advancing to step 1:
The number 57 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 57

On to step 2:
12 divided by 57 is 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 57

Going ahead to step 3:
57 goes into 121 2 times with a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 114 from 121 to get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 57

Step 4:
57 goes into 78 1 times with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Subtract 57 from 78 to get 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 57

Moving on to step 5:
The number 57 fits into 215 3 times, leaving a remainder of 44.
The next digit of our result is 3. 
Result so far: 213.0
If we take 171 away from 215, we end up with 44.
Grab the next digit (8) from the dividend, add it to 44, then carry on: 448 / 57

Going ahead to step 6:
The number 57 fits into 448 7 times, leaving a remainder of 49.
Write down 7 as next digit of the result. 
Result so far: 2137.0
Subtracting 399 from 448 leaves us with 49.
Append the next digit (7) from the dividend to 49 and continue with: 497 / 57

Moving on to step 7:
497 divided by 57 is 8 with a remainder of 41.
The next digit of our result is 8. 
Result so far: 21378.0
The remainder is 41 after subtracting 456 from 497.
Fetch the next digit (8) from the dividend, attach it to 41 and continue: 418 / 57

On to step 8:
The number 57 fits into 418 7 times, leaving a remainder of 19.
Record the quotient 7 as the next digit in the result. 
Result so far: 213787.0
If we take 399 away from 418, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 9:
57 can be fit into 190 3 times, resulting in a remainder of 19.
The next digit of our result is 3. 
Result so far: 213787.3
The remainder is 19 after subtracting 171 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 10:
57 can be fit into 190 3 times, resulting in a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 213787.33
Subtract 171 from 190 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final outcome is 213787.33, with a leftover of 0.019.