We're dividing 139258 by 74 
We want to divide 139258 by 74.

On to step 1:
When dividing 1 by 74, 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 subtract 0 from 1, we get 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 74

Going ahead to step 2:
74 goes into 13 0 times with a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Append the next digit (9) from the dividend to 13 and continue with: 139 / 74

Let's proceed to step 3:
74 goes into 139 1 times with a remainder of 65.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 74 from 139, we get 65.
Bring next digit (2) of the dividend behind the 65 and repeat the process: 652 / 74

Let's proceed to step 4:
When dividing 652 by 74, we get 8 with a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
The remainder is 60 after subtracting 592 from 652.
Append the next digit (5) from the dividend to 60 and continue with: 605 / 74

Moving on to step 5:
74 can be fit into 605 8 times, resulting in a remainder of 13.
The next digit of our result is 8. 
Result so far: 188.0
The remainder is 13 after subtracting 592 from 605.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 74

Going ahead to step 6:
74 can be fit into 138 1 times, resulting in a remainder of 64.
Put 1 as the next digit of the answer. 
Result so far: 1881.0
Subtracting 74 from 138 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 7:
74 can be fit into 640 8 times, resulting in a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 1881.8
Subtracting 592 from 640 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 8:
74 goes into 480 6 times with a remainder of 36.
Use 6 as the next digit of our solution. 
Result so far: 1881.86
Subtract 444 from 480 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 9:
When dividing 360 by 74, we get 4 with a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 1881.864
If we take 296 away from 360, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 10:
74 goes into 640 8 times with a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 1881.8648
If we subtract 592 from 640, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 11:
74 can be fit into 480 6 times, resulting in a remainder of 36.
The number 6 becomes the next digit in our result. 
Result so far: 1881.86486
Deduct 444 from 480 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 12:
360 divided by 74 is 4 with a remainder of 64.
The next digit of our result is 4. 
Result so far: 1881.864864
If we take 296 away from 360, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 13:
If we divide 640 by 74, we get 8 and a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 1881.8648648
If we subtract 592 from 640, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 14:
74 goes into 480 6 times with a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 1881.86486486
The remainder is 36 after subtracting 444 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final outcome is 1881.86486486, with a leftover of 3.6e-08.