We look at the division of 42558316 by 39 
Our goal is to divide 42558316 by 39.

Step 1:
4 divided by 39 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 39

Let's proceed to step 2:
39 can be fit into 42 1 times, resulting in a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 39 from 42 to get 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 39

On to step 3:
When dividing 35 by 39, we get 0 with a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 35 leaves us with 35.
Take the next digit (5) from the dividend and append it to 35, then repeat: 355 / 39

Advancing to step 4:
When dividing 355 by 39, we get 9 with a remainder of 4.
The next digit of our result is 9. 
Result so far: 109.0
If we subtract 351 from 355, we get 4.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 39

Moving on to step 5:
When dividing 48 by 39, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1091.0
Deduct 39 from 48 and we're left with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 39

Advancing to step 6:
When dividing 93 by 39, we get 2 with a remainder of 15.
The next digit of our result is 2. 
Result so far: 10912.0
The remainder is 15 after subtracting 78 from 93.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 39

Moving on to step 7:
39 goes into 151 3 times with a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 109123.0
If we take 117 away from 151, we end up with 34.
Bring next digit (6) of the dividend behind the 34 and repeat the process: 346 / 39

Going ahead to step 8:
The number 39 fits into 346 8 times, leaving a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 1091238.0
The remainder is 34 after subtracting 312 from 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 9:
39 goes into 340 8 times with a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 1091238.8
Subtract 312 from 340 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 10:
When dividing 280 by 39, we get 7 with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 1091238.87
If we take 273 away from 280, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 11:
70 divided by 39 is 1 with a remainder of 31.
Record the quotient 1 as the next digit in the result. 
Result so far: 1091238.871
Deduct 39 from 70 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 12:
39 goes into 310 7 times with a remainder of 37.
The next digit of our result is 7. 
Result so far: 1091238.8717
Subtracting 273 from 310 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 13:
39 can be fit into 370 9 times, resulting in a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 1091238.87179
Subtracting 351 from 370 leaves us 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.

On to step 14:
When dividing 190 by 39, we get 4 with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 1091238.871794
If we take 156 away from 190, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 15:
The number 39 fits into 340 8 times, leaving a remainder of 28.
The next digit of our result is 8. 
Result so far: 1091238.8717948
If we take 312 away from 340, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 16:
39 goes into 280 7 times with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 1091238.87179487
Subtracting 273 from 280 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The quotient of the division is 1091238.87179487, and the remainder is 7e-09.