12318842 ÷ 558 
Our goal is to divide 12318842 by 558.

Going ahead to step 1:
When dividing 1 by 558, 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.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 558

Step 2:
If we divide 12 by 558, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 558

On to step 3:
558 goes into 123 0 times with a remainder of 123.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 123 and we're left with 123.
Append the next digit (1) from the dividend to 123 and continue with: 1231 / 558

Going ahead to step 4:
When dividing 1231 by 558, we get 2 with a remainder of 115.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 1116 from 1231 and we're left with 115.
Grab the next digit (8) from the dividend, add it to 115, then carry on: 1158 / 558

Moving on to step 5:
1158 divided by 558 is 2 with a remainder of 42.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
Subtract 1116 from 1158 to get 42.
Fetch the next digit (8) from the dividend, attach it to 42 and continue: 428 / 558

Step 6:
428 divided by 558 is 0 with a remainder of 428.
The next digit of our result is 0. 
Result so far: 220.0
The remainder is 428 after subtracting 0 from 428.
Include the next digit (4) from the dividend after 428, then repeat: 4284 / 558

On to step 7:
4284 divided by 558 is 7 with a remainder of 378.
The number 7 becomes the next digit in our result. 
Result so far: 2207.0
Deduct 3906 from 4284 and we're left with 378.
Fetch the next digit (2) from the dividend, attach it to 378 and continue: 3782 / 558

Let's proceed to step 8:
When dividing 3782 by 558, we get 6 with a remainder of 434.
The next digit of our result is 6. 
Result so far: 22076.0
If we take 3348 away from 3782, we end up with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Let's proceed to step 9:
558 goes into 4340 7 times with a remainder of 434.
Use 7 as the next digit of our solution. 
Result so far: 22076.7
If we take 3906 away from 4340, we end up with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

On to step 10:
558 goes into 4340 7 times with a remainder of 434.
The next digit of our result is 7. 
Result so far: 22076.77
If we take 3906 away from 4340, we end up with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

The final outcome is 22076.77, with a leftover of 0.434.