We're dividing 12938 by 93 
Let's see how many times 93 fits into 12938.

Advancing to step 1:
The number 93 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 93

Advancing to step 2:
The number 93 fits into 12 0 times, leaving a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Include the next digit (9) from the dividend after 12, then repeat: 129 / 93

Moving on to step 3:
93 can be fit into 129 1 times, resulting in a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 93 from 129 to get 36.
Append the next digit (3) from the dividend to 36 and continue with: 363 / 93

Step 4:
When dividing 363 by 93, we get 3 with a remainder of 84.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Deduct 279 from 363 and we're left with 84.
Bring next digit (8) of the dividend behind the 84 and repeat the process: 848 / 93

On to step 5:
93 can be fit into 848 9 times, resulting in a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 139.0
Subtracting 837 from 848 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 6:
The number 93 fits into 110 1 times, leaving a remainder of 17.
The next digit of our result is 1. 
Result so far: 139.1
Subtracting 93 from 110 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 7:
When dividing 170 by 93, we get 1 with a remainder of 77.
Record the quotient 1 as the next digit in the result. 
Result so far: 139.11
Deduct 93 from 170 and we're left with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Our division results in 139.11 with a remaining 0.077.