We're dividing 139691 by 74 
Our goal is to divide 139691 by 74.

On to step 1:
The number 74 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 74

On to step 2:
When dividing 13 by 74, we get 0 with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 74

Step 3:
The number 74 fits into 139 1 times, leaving a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 74 from 139 to get 65.
Take the next digit (6) from the dividend and append it to 65, then repeat: 656 / 74

On to step 4:
The number 74 fits into 656 8 times, leaving a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
The remainder is 64 after subtracting 592 from 656.
Include the next digit (9) from the dividend after 64, then repeat: 649 / 74

Going ahead to step 5:
When dividing 649 by 74, we get 8 with a remainder of 57.
Use 8 as the next digit of our solution. 
Result so far: 188.0
If we take 592 away from 649, we end up with 57.
Append the next digit (1) from the dividend to 57 and continue with: 571 / 74

Advancing to step 6:
74 goes into 571 7 times with a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 1887.0
If we subtract 518 from 571, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 7:
When dividing 530 by 74, we get 7 with a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 1887.7
If we subtract 518 from 530, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
74 can be fit into 120 1 times, resulting in a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 1887.71
Subtracting 74 from 120 leaves us 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.

Step 9:
The number 74 fits into 460 6 times, leaving a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 1887.716
Subtracting 444 from 460 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 10:
74 can be fit into 160 2 times, resulting in a remainder of 12.
The next digit of our result is 2. 
Result so far: 1887.7162
Deduct 148 from 160 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 11:
74 goes into 120 1 times with a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 1887.71621
Subtracting 74 from 120 leaves us 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.

Moving on to step 12:
74 can be fit into 460 6 times, resulting in a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 1887.716216
The remainder is 16 after subtracting 444 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
When dividing 160 by 74, we get 2 with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 1887.7162162
Deduct 148 from 160 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 14:
74 can be fit into 120 1 times, resulting in a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 1887.71621621
If we take 74 away from 120, 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.

The final outcome is 1887.71621621, with a leftover of 4.6e-08.