39585589 ÷ 869 
We want to figure out the number of times 39585589 can be divided by 869.

Advancing to step 1:
869 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 869

On to step 2:
The number 869 fits into 39 0 times, leaving a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Fetch the next digit (5) from the dividend, attach it to 39 and continue: 395 / 869

Let's proceed to step 3:
395 divided by 869 is 0 with a remainder of 395.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 395 leaves us with 395.
Append the next digit (8) from the dividend to 395 and continue with: 3958 / 869

Moving on to step 4:
The number 869 fits into 3958 4 times, leaving a remainder of 482.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 3476 from 3958 leaves us with 482.
Fetch the next digit (5) from the dividend, attach it to 482 and continue: 4825 / 869

Let's proceed to step 5:
When dividing 4825 by 869, we get 5 with a remainder of 480.
Put 5 as the next digit of the answer. 
Result so far: 45.0
If we subtract 4345 from 4825, we get 480.
Include the next digit (5) from the dividend after 480, then repeat: 4805 / 869

Going ahead to step 6:
869 goes into 4805 5 times with a remainder of 460.
The next digit of our result is 5. 
Result so far: 455.0
Subtracting 4345 from 4805 leaves us with 460.
Fetch the next digit (8) from the dividend, attach it to 460 and continue: 4608 / 869

On to step 7:
When dividing 4608 by 869, we get 5 with a remainder of 263.
Write down 5 as next digit of the result. 
Result so far: 4555.0
Deduct 4345 from 4608 and we're left with 263.
Bring next digit (9) of the dividend behind the 263 and repeat the process: 2639 / 869

Going ahead to step 8:
869 can be fit into 2639 3 times, resulting in a remainder of 32.
Put 3 as the next digit of the answer. 
Result so far: 45553.0
Subtract 2607 from 2639 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 9:
When dividing 320 by 869, we get 0 with a remainder of 320.
The next digit of our result is 0. 
Result so far: 45553.0
Subtract 0 from 320 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 10:
When dividing 3200 by 869, we get 3 with a remainder of 593.
The next digit of our result is 3. 
Result so far: 45553.03
If we subtract 2607 from 3200, we get 593.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5930, and continue the process.

Moving on to step 11:
When dividing 5930 by 869, we get 6 with a remainder of 716.
Write down 6 as next digit of the result. 
Result so far: 45553.036
Subtract 5214 from 5930 to get 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Advancing to step 12:
869 can be fit into 7160 8 times, resulting in a remainder of 208.
Write down 8 as next digit of the result. 
Result so far: 45553.0368
The remainder is 208 after subtracting 6952 from 7160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 13:
If we divide 2080 by 869, we get 2 and a remainder of 342.
Put 2 as the next digit of the answer. 
Result so far: 45553.03682
The remainder is 342 after subtracting 1738 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

On to step 14:
869 can be fit into 3420 3 times, resulting in a remainder of 813.
Use 3 as the next digit of our solution. 
Result so far: 45553.036823
Subtract 2607 from 3420 to get 813.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8130, and continue the process.

Going ahead to step 15:
The number 869 fits into 8130 9 times, leaving a remainder of 309.
The next digit of our result is 9. 
Result so far: 45553.0368239
Subtracting 7821 from 8130 leaves us with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Step 16:
When dividing 3090 by 869, we get 3 with a remainder of 483.
The number 3 becomes the next digit in our result. 
Result so far: 45553.03682393
If we subtract 2607 from 3090, we get 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

The final result is 45553.03682393 with a remainder of 4.83e-07.