40380921 ÷ 829 
We're looking to find how many times 829 goes into 40380921.

Going ahead to step 1:
When dividing 4 by 829, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 829

Moving on to step 2:
The number 829 fits into 40 0 times, leaving a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Take the next digit (3) from the dividend and append it to 40, then repeat: 403 / 829

Step 3:
829 goes into 403 0 times with a remainder of 403.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 403 leaves us with 403.
Bring next digit (8) of the dividend behind the 403 and repeat the process: 4038 / 829

Advancing to step 4:
When dividing 4038 by 829, we get 4 with a remainder of 722.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 3316 away from 4038, we end up with 722.
Bring next digit (0) of the dividend behind the 722 and repeat the process: 7220 / 829

Step 5:
The number 829 fits into 7220 8 times, leaving a remainder of 588.
The next digit of our result is 8. 
Result so far: 48.0
Subtracting 6632 from 7220 leaves us with 588.
Fetch the next digit (9) from the dividend, attach it to 588 and continue: 5889 / 829

Let's proceed to step 6:
5889 divided by 829 is 7 with a remainder of 86.
The next digit of our result is 7. 
Result so far: 487.0
If we take 5803 away from 5889, we end up with 86.
Take the next digit (2) from the dividend and append it to 86, then repeat: 862 / 829

Advancing to step 7:
When dividing 862 by 829, we get 1 with a remainder of 33.
Use 1 as the next digit of our solution. 
Result so far: 4871.0
Deduct 829 from 862 and we're left with 33.
Take the next digit (1) from the dividend and append it to 33, then repeat: 331 / 829

Going ahead to step 8:
When dividing 331 by 829, we get 0 with a remainder of 331.
Write down 0 as next digit of the result. 
Result so far: 48710.0
The remainder is 331 after subtracting 0 from 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

On to step 9:
The number 829 fits into 3310 3 times, leaving a remainder of 823.
Use 3 as the next digit of our solution. 
Result so far: 48710.3
Subtract 2487 from 3310 to get 823.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8230, and continue the process.

Let's proceed to step 10:
If we divide 8230 by 829, we get 9 and a remainder of 769.
Write down 9 as next digit of the result. 
Result so far: 48710.39
Subtract 7461 from 8230 to get 769.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7690, and continue the process.

Moving on to step 11:
The number 829 fits into 7690 9 times, leaving a remainder of 229.
Write down 9 as next digit of the result. 
Result so far: 48710.399
Deduct 7461 from 7690 and we're left with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

In conclusion, the division gives 48710.399 with a balance of 0.0229.