We're dividing 42107177 by 139 
Let's see how many times 139 fits into 42107177.

On to step 1:
The number 139 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 139

Advancing to step 2:
The number 139 fits into 42 0 times, leaving a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Bring next digit (1) of the dividend behind the 42 and repeat the process: 421 / 139

Step 3:
If we divide 421 by 139, we get 3 and a remainder of 4.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 417 from 421 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 139

Going ahead to step 4:
If we divide 40 by 139, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 30.0
Deduct 0 from 40 and we're left with 40.
Append the next digit (7) from the dividend to 40 and continue with: 407 / 139

Advancing to step 5:
The number 139 fits into 407 2 times, leaving a remainder of 129.
The next digit of our result is 2. 
Result so far: 302.0
The remainder is 129 after subtracting 278 from 407.
Take the next digit (1) from the dividend and append it to 129, then repeat: 1291 / 139

Let's proceed to step 6:
1291 divided by 139 is 9 with a remainder of 40.
The number 9 becomes the next digit in our result. 
Result so far: 3029.0
If we subtract 1251 from 1291, we get 40.
Fetch the next digit (7) from the dividend, attach it to 40 and continue: 407 / 139

Advancing to step 7:
139 can be fit into 407 2 times, resulting in a remainder of 129.
Use 2 as the next digit of our solution. 
Result so far: 30292.0
If we subtract 278 from 407, we get 129.
Grab the next digit (7) from the dividend, add it to 129, then carry on: 1297 / 139

Moving on to step 8:
139 goes into 1297 9 times with a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 302929.0
If we take 1251 away from 1297, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 9:
139 can be fit into 460 3 times, resulting in a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 302929.3
If we subtract 417 from 460, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 10:
When dividing 430 by 139, we get 3 with a remainder of 13.
The next digit of our result is 3. 
Result so far: 302929.33
Subtracting 417 from 430 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The quotient of the division is 302929.33, and the remainder is 0.013.