We're dividing 393212 by 8 
Let's see how many times 8 fits into 393212.

Let's proceed to step 1:
When dividing 3 by 8, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 8

Moving on to step 2:
8 can be fit into 39 4 times, resulting in a remainder of 7.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 32 from 39 leaves us with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 8

Going ahead to step 3:
8 goes into 73 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 49.0
Subtract 72 from 73 to get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 8

Moving on to step 4:
8 can be fit into 12 1 times, resulting in a remainder of 4.
The next digit of our result is 1. 
Result so far: 491.0
If we take 8 away from 12, we end up with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 8

Step 5:
When dividing 41 by 8, we get 5 with a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 4915.0
If we take 40 away from 41, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 8

Step 6:
When dividing 12 by 8, we get 1 with a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 49151.0
If we subtract 8 from 12, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
When dividing 40 by 8, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 49151.5
If we subtract 40 from 40, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
0 divided by 8 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 49151.5
Subtracting 0 from 0 leaves us 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.

Going ahead to step 9:
If we divide 0 by 8, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 49151.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 49151.5, with a leftover of 0.0.