We divide 641379 by 40
We're looking to find how many times 40 goes into 641379.

Let's proceed to step 1:
The number 40 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 40

On to step 2:
When dividing 64 by 40, we get 1 with a remainder of 24.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 40 from 64 leaves us with 24.
Include the next digit (1) from the dividend after 24, then repeat: 241 / 40

Advancing to step 3:
If we divide 241 by 40, we get 6 and a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtracting 240 from 241 leaves us with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 40

Going ahead to step 4:
If we divide 13 by 40, we get 0 and a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 160.0
If we subtract 0 from 13, we get 13.
Fetch the next digit (7) from the dividend, attach it to 13 and continue: 137 / 40

Let's proceed to step 5:
137 divided by 40 is 3 with a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 1603.0
Subtract 120 from 137 to get 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 40

Going ahead to step 6:
When dividing 179 by 40, we get 4 with a remainder of 19.
Write down 4 as next digit of the result. 
Result so far: 16034.0
The remainder is 19 after subtracting 160 from 179.
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 7:
The number 40 fits into 190 4 times, leaving a remainder of 30.
The number 4 becomes the next digit in our result. 
Result so far: 16034.4
If we subtract 160 from 190, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 8:
If we divide 300 by 40, we get 7 and a remainder of 20.
The next digit of our result is 7. 
Result so far: 16034.47
Subtracting 280 from 300 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
200 divided by 40 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 16034.475
If we subtract 200 from 200, 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.

Advancing to step 10:
The number 40 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 16034.475
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.

Step 11:
The number 40 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 16034.475
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.

In conclusion, the division gives 16034.475 with a balance of 0.0.