We look at the division of 38129288 by 840 
Let's see how many times 840 fits into 38129288.

Advancing to step 1:
840 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
If we take 0 away from 3, we end up with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 840

On to step 2:
38 divided by 840 is 0 with a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 38 to get 38.
Take the next digit (1) from the dividend and append it to 38, then repeat: 381 / 840

Let's proceed to step 3:
840 can be fit into 381 0 times, resulting in a remainder of 381.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 381 after subtracting 0 from 381.
Include the next digit (2) from the dividend after 381, then repeat: 3812 / 840

Step 4:
The number 840 fits into 3812 4 times, leaving a remainder of 452.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 452 after subtracting 3360 from 3812.
Grab the next digit (9) from the dividend, add it to 452, then carry on: 4529 / 840

Let's proceed to step 5:
If we divide 4529 by 840, we get 5 and a remainder of 329.
Put 5 as the next digit of the answer. 
Result so far: 45.0
If we take 4200 away from 4529, we end up with 329.
Bring next digit (2) of the dividend behind the 329 and repeat the process: 3292 / 840

Going ahead to step 6:
If we divide 3292 by 840, we get 3 and a remainder of 772.
Write down 3 as next digit of the result. 
Result so far: 453.0
Deduct 2520 from 3292 and we're left with 772.
Grab the next digit (8) from the dividend, add it to 772, then carry on: 7728 / 840

Advancing to step 7:
7728 divided by 840 is 9 with a remainder of 168.
The next digit of our result is 9. 
Result so far: 4539.0
If we subtract 7560 from 7728, we get 168.
Bring next digit (8) of the dividend behind the 168 and repeat the process: 1688 / 840

Step 8:
The number 840 fits into 1688 2 times, leaving a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 45392.0
The remainder is 8 after subtracting 1680 from 1688.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
840 goes into 80 0 times with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 45392.0
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 10:
If we divide 800 by 840, we get 0 and a remainder of 800.
Write down 0 as next digit of the result. 
Result so far: 45392.0
If we take 0 away from 800, we end up with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

In conclusion, the division gives 45392.0 with a balance of 0.8.