We're dividing 398663 by 29 
We want to divide 398663 by 29.

Step 1:
29 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 29

Let's proceed to step 2:
29 goes into 39 1 times with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 29 from 39 to get 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 29

Advancing to step 3:
When dividing 108 by 29, we get 3 with a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtracting 87 from 108 leaves us with 21.
Fetch the next digit (6) from the dividend, attach it to 21 and continue: 216 / 29

On to step 4:
If we divide 216 by 29, we get 7 and a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 137.0
The remainder is 13 after subtracting 203 from 216.
Fetch the next digit (6) from the dividend, attach it to 13 and continue: 136 / 29

On to step 5:
When dividing 136 by 29, we get 4 with a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 1374.0
If we take 116 away from 136, we end up with 20.
Grab the next digit (3) from the dividend, add it to 20, then carry on: 203 / 29

Advancing to step 6:
203 divided by 29 is 7 with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 13747.0
Subtracting 203 from 203 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.

On to step 7:
If we divide 0 by 29, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 13747.0
If we take 0 away from 0, 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.

On to step 8:
The number 29 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 13747.0
If we take 0 away from 0, 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.

The final outcome is 13747.0, with a leftover of 0.0.