42389549 ÷ 555 
We want to divide 42389549 by 555.

Advancing to step 1:
The number 555 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 555

Going ahead to step 2:
If we divide 42 by 555, we get 0 and a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Fetch the next digit (3) from the dividend, attach it to 42 and continue: 423 / 555

Advancing to step 3:
When dividing 423 by 555, we get 0 with a remainder of 423.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 423, we end up with 423.
Fetch the next digit (8) from the dividend, attach it to 423 and continue: 4238 / 555

Step 4:
555 can be fit into 4238 7 times, resulting in a remainder of 353.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 3885 from 4238 and we're left with 353.
Bring next digit (9) of the dividend behind the 353 and repeat the process: 3539 / 555

Going ahead to step 5:
If we divide 3539 by 555, we get 6 and a remainder of 209.
Put 6 as the next digit of the answer. 
Result so far: 76.0
If we subtract 3330 from 3539, we get 209.
Include the next digit (5) from the dividend after 209, then repeat: 2095 / 555

Going ahead to step 6:
When dividing 2095 by 555, we get 3 with a remainder of 430.
The next digit of our result is 3. 
Result so far: 763.0
Subtracting 1665 from 2095 leaves us with 430.
Append the next digit (4) from the dividend to 430 and continue with: 4304 / 555

Let's proceed to step 7:
555 goes into 4304 7 times with a remainder of 419.
Use 7 as the next digit of our solution. 
Result so far: 7637.0
If we subtract 3885 from 4304, we get 419.
Bring next digit (9) of the dividend behind the 419 and repeat the process: 4199 / 555

Going ahead to step 8:
When dividing 4199 by 555, we get 7 with a remainder of 314.
The number 7 becomes the next digit in our result. 
Result so far: 76377.0
Deduct 3885 from 4199 and we're left with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Step 9:
555 can be fit into 3140 5 times, resulting in a remainder of 365.
Put 5 as the next digit of the answer. 
Result so far: 76377.5
If we take 2775 away from 3140, we end up with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Let's proceed to step 10:
3650 divided by 555 is 6 with a remainder of 320.
The number 6 becomes the next digit in our result. 
Result so far: 76377.56
The remainder is 320 after subtracting 3330 from 3650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 11:
The number 555 fits into 3200 5 times, leaving a remainder of 425.
Use 5 as the next digit of our solution. 
Result so far: 76377.565
If we subtract 2775 from 3200, we get 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Advancing to step 12:
The number 555 fits into 4250 7 times, leaving a remainder of 365.
Use 7 as the next digit of our solution. 
Result so far: 76377.5657
Deduct 3885 from 4250 and we're left with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Let's proceed to step 13:
If we divide 3650 by 555, we get 6 and a remainder of 320.
Use 6 as the next digit of our solution. 
Result so far: 76377.56576
If we subtract 3330 from 3650, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 14:
If we divide 3200 by 555, we get 5 and a remainder of 425.
Write down 5 as next digit of the result. 
Result so far: 76377.565765
Subtracting 2775 from 3200 leaves us with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Let's proceed to step 15:
If we divide 4250 by 555, we get 7 and a remainder of 365.
The next digit of our result is 7. 
Result so far: 76377.5657657
Subtract 3885 from 4250 to get 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

On to step 16:
555 goes into 3650 6 times with a remainder of 320.
The number 6 becomes the next digit in our result. 
Result so far: 76377.56576576
Subtract 3330 from 3650 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The final outcome is 76377.56576576, with a leftover of 3.2e-07.