39605593 ÷ 866 
Our goal is to divide 39605593 by 866.

Let's proceed to step 1:
866 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 866

Moving on to step 2:
866 can be fit into 39 0 times, resulting in a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Include the next digit (6) from the dividend after 39, then repeat: 396 / 866

Let's proceed to step 3:
When dividing 396 by 866, we get 0 with a remainder of 396.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 396 leaves us with 396.
Take the next digit (0) from the dividend and append it to 396, then repeat: 3960 / 866

On to step 4:
If we divide 3960 by 866, we get 4 and a remainder of 496.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 3464 from 3960 and we're left with 496.
Bring next digit (5) of the dividend behind the 496 and repeat the process: 4965 / 866

On to step 5:
If we divide 4965 by 866, we get 5 and a remainder of 635.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
If we subtract 4330 from 4965, we get 635.
Append the next digit (5) from the dividend to 635 and continue with: 6355 / 866

Moving on to step 6:
If we divide 6355 by 866, we get 7 and a remainder of 293.
The number 7 becomes the next digit in our result. 
Result so far: 457.0
If we subtract 6062 from 6355, we get 293.
Grab the next digit (9) from the dividend, add it to 293, then carry on: 2939 / 866

Going ahead to step 7:
866 can be fit into 2939 3 times, resulting in a remainder of 341.
Use 3 as the next digit of our solution. 
Result so far: 4573.0
Subtract 2598 from 2939 to get 341.
Bring next digit (3) of the dividend behind the 341 and repeat the process: 3413 / 866

On to step 8:
When dividing 3413 by 866, we get 3 with a remainder of 815.
Write down 3 as next digit of the result. 
Result so far: 45733.0
Subtracting 2598 from 3413 leaves us with 815.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8150, and continue the process.

Step 9:
When dividing 8150 by 866, we get 9 with a remainder of 356.
The next digit of our result is 9. 
Result so far: 45733.9
The remainder is 356 after subtracting 7794 from 8150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Advancing to step 10:
The number 866 fits into 3560 4 times, leaving a remainder of 96.
Use 4 as the next digit of our solution. 
Result so far: 45733.94
The remainder is 96 after subtracting 3464 from 3560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 11:
The number 866 fits into 960 1 times, leaving a remainder of 94.
The number 1 becomes the next digit in our result. 
Result so far: 45733.941
Deduct 866 from 960 and we're left with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

On to step 12:
If we divide 940 by 866, we get 1 and a remainder of 74.
Use 1 as the next digit of our solution. 
Result so far: 45733.9411
Subtract 866 from 940 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

In conclusion, the division gives 45733.9411 with a balance of 0.00074.