We're dividing 12511384 by 599 
We're looking to find how many times 599 goes into 12511384.

Moving on to step 1:
When dividing 1 by 599, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 599

Going ahead to step 2:
12 divided by 599 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 599

Advancing to step 3:
599 goes into 125 0 times with a remainder of 125.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 125 and we're left with 125.
Include the next digit (1) from the dividend after 125, then repeat: 1251 / 599

Let's proceed to step 4:
599 can be fit into 1251 2 times, resulting in a remainder of 53.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 1198 from 1251 leaves us with 53.
Append the next digit (1) from the dividend to 53 and continue with: 531 / 599

Going ahead to step 5:
If we divide 531 by 599, we get 0 and a remainder of 531.
Use 0 as the next digit of our solution. 
Result so far: 20.0
If we subtract 0 from 531, we get 531.
Include the next digit (3) from the dividend after 531, then repeat: 5313 / 599

Moving on to step 6:
599 can be fit into 5313 8 times, resulting in a remainder of 521.
The next digit of our result is 8. 
Result so far: 208.0
Deduct 4792 from 5313 and we're left with 521.
Include the next digit (8) from the dividend after 521, then repeat: 5218 / 599

Going ahead to step 7:
599 can be fit into 5218 8 times, resulting in a remainder of 426.
Put 8 as the next digit of the answer. 
Result so far: 2088.0
If we take 4792 away from 5218, we end up with 426.
Fetch the next digit (4) from the dividend, attach it to 426 and continue: 4264 / 599

Going ahead to step 8:
The number 599 fits into 4264 7 times, leaving a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 20887.0
Subtracting 4193 from 4264 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Going ahead to step 9:
710 divided by 599 is 1 with a remainder of 111.
The next digit of our result is 1. 
Result so far: 20887.1
Subtract 599 from 710 to get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Let's proceed to step 10:
599 goes into 1110 1 times with a remainder of 511.
Use 1 as the next digit of our solution. 
Result so far: 20887.11
If we subtract 599 from 1110, we get 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

The final outcome is 20887.11, with a leftover of 0.511.