We divide 400450 by 39
Our goal is to divide 400450 by 39.

On to step 1:
39 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 39

Let's proceed to step 2:
39 can be fit into 40 1 times, resulting in a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
If we take 39 away from 40, we end up with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 39

On to step 3:
If we divide 10 by 39, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 10 to get 10.
Include the next digit (4) from the dividend after 10, then repeat: 104 / 39

Going ahead to step 4:
39 can be fit into 104 2 times, resulting in a remainder of 26.
The next digit of our result is 2. 
Result so far: 102.0
The remainder is 26 after subtracting 78 from 104.
Include the next digit (5) from the dividend after 26, then repeat: 265 / 39

Advancing to step 5:
The number 39 fits into 265 6 times, leaving a remainder of 31.
Write down 6 as next digit of the result. 
Result so far: 1026.0
Subtracting 234 from 265 leaves us with 31.
Append the next digit (0) from the dividend to 31 and continue with: 310 / 39

On to step 6:
If we divide 310 by 39, we get 7 and a remainder of 37.
Record the quotient 7 as the next digit in the result. 
Result so far: 10267.0
Deduct 273 from 310 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 7:
39 can be fit into 370 9 times, resulting in a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 10267.9
Deduct 351 from 370 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 8:
When dividing 190 by 39, we get 4 with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 10267.94
The remainder is 34 after subtracting 156 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 9:
39 goes into 340 8 times with a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 10267.948
If we subtract 312 from 340, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 10:
39 goes into 280 7 times with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 10267.9487
Subtracting 273 from 280 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 11:
39 goes into 70 1 times with a remainder of 31.
The next digit of our result is 1. 
Result so far: 10267.94871
If we take 39 away from 70, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 12:
39 can be fit into 310 7 times, resulting in a remainder of 37.
The next digit of our result is 7. 
Result so far: 10267.948717
If we take 273 away from 310, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 13:
The number 39 fits into 370 9 times, leaving a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 10267.9487179
If we subtract 351 from 370, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 14:
39 can be fit into 190 4 times, resulting in a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 10267.94871794
Subtracting 156 from 190 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final result is 10267.94871794 with a remainder of 3.4e-08.