We're dividing 931399 by 10 
We want to divide 931399 by 10.

Step 1:
When dividing 9 by 10, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (3) from the dividend and append it to 9, then repeat: 93 / 10

Moving on to step 2:
93 divided by 10 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 90 from 93 to get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 10

Going ahead to step 3:
31 divided by 10 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 93.0
Subtract 30 from 31 to get 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 10

Moving on to step 4:
If we divide 13 by 10, we get 1 and a remainder of 3.
The next digit of our result is 1. 
Result so far: 931.0
Subtract 10 from 13 to get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 10

Moving on to step 5:
10 can be fit into 39 3 times, resulting in a remainder of 9.
The next digit of our result is 3. 
Result so far: 9313.0
If we subtract 30 from 39, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 10

On to step 6:
The number 10 fits into 99 9 times, leaving a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 93139.0
If we take 90 away from 99, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
10 can be fit into 90 9 times, resulting in a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 93139.9
If we take 90 away from 90, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
The number 10 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 93139.9
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
The number 10 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 93139.9
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 93139.9 with a remaining 0.0.