39905107 divided by 871 
We want to figure out the number of times 39905107 can be divided by 871.

Step 1:
3 divided by 871 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 871

Step 2:
The number 871 fits into 39 0 times, leaving a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 871

Advancing to step 3:
The number 871 fits into 399 0 times, leaving a remainder of 399.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 399, we get 399.
Bring next digit (0) of the dividend behind the 399 and repeat the process: 3990 / 871

Step 4:
3990 divided by 871 is 4 with a remainder of 506.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 3484 from 3990 leaves us with 506.
Include the next digit (5) from the dividend after 506, then repeat: 5065 / 871

Advancing to step 5:
5065 divided by 871 is 5 with a remainder of 710.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
If we take 4355 away from 5065, we end up with 710.
Grab the next digit (1) from the dividend, add it to 710, then carry on: 7101 / 871

Moving on to step 6:
If we divide 7101 by 871, we get 8 and a remainder of 133.
Use 8 as the next digit of our solution. 
Result so far: 458.0
Subtract 6968 from 7101 to get 133.
Bring next digit (0) of the dividend behind the 133 and repeat the process: 1330 / 871

Let's proceed to step 7:
If we divide 1330 by 871, we get 1 and a remainder of 459.
Use 1 as the next digit of our solution. 
Result so far: 4581.0
Deduct 871 from 1330 and we're left with 459.
Fetch the next digit (7) from the dividend, attach it to 459 and continue: 4597 / 871

Advancing to step 8:
871 can be fit into 4597 5 times, resulting in a remainder of 242.
The next digit of our result is 5. 
Result so far: 45815.0
Subtract 4355 from 4597 to get 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Going ahead to step 9:
When dividing 2420 by 871, we get 2 with a remainder of 678.
Record the quotient 2 as the next digit in the result. 
Result so far: 45815.2
Subtracting 1742 from 2420 leaves us with 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Moving on to step 10:
871 can be fit into 6780 7 times, resulting in a remainder of 683.
Write down 7 as next digit of the result. 
Result so far: 45815.27
If we subtract 6097 from 6780, we get 683.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6830, and continue the process.

Going ahead to step 11:
The number 871 fits into 6830 7 times, leaving a remainder of 733.
The number 7 becomes the next digit in our result. 
Result so far: 45815.277
If we subtract 6097 from 6830, we get 733.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7330, and continue the process.

In conclusion, the division gives 45815.277 with a balance of 0.0733.