43899139 ÷ 568 
We want to figure out the number of times 43899139 can be divided by 568.

Let's proceed to step 1:
The number 568 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 568

Advancing to step 2:
568 goes into 43 0 times with a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 43 leaves us with 43.
Take the next digit (8) from the dividend and append it to 43, then repeat: 438 / 568

Step 3:
438 divided by 568 is 0 with a remainder of 438.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 438 to get 438.
Include the next digit (9) from the dividend after 438, then repeat: 4389 / 568

Advancing to step 4:
568 goes into 4389 7 times with a remainder of 413.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 3976 from 4389 leaves us with 413.
Fetch the next digit (9) from the dividend, attach it to 413 and continue: 4139 / 568

Step 5:
When dividing 4139 by 568, we get 7 with a remainder of 163.
Write down 7 as next digit of the result. 
Result so far: 77.0
If we take 3976 away from 4139, we end up with 163.
Take the next digit (1) from the dividend and append it to 163, then repeat: 1631 / 568

Step 6:
568 can be fit into 1631 2 times, resulting in a remainder of 495.
Write down 2 as next digit of the result. 
Result so far: 772.0
If we subtract 1136 from 1631, we get 495.
Fetch the next digit (3) from the dividend, attach it to 495 and continue: 4953 / 568

Going ahead to step 7:
The number 568 fits into 4953 8 times, leaving a remainder of 409.
The number 8 becomes the next digit in our result. 
Result so far: 7728.0
Subtract 4544 from 4953 to get 409.
Grab the next digit (9) from the dividend, add it to 409, then carry on: 4099 / 568

Let's proceed to step 8:
When dividing 4099 by 568, we get 7 with a remainder of 123.
Record the quotient 7 as the next digit in the result. 
Result so far: 77287.0
The remainder is 123 after subtracting 3976 from 4099.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Let's proceed to step 9:
568 goes into 1230 2 times with a remainder of 94.
Use 2 as the next digit of our solution. 
Result so far: 77287.2
If we take 1136 away from 1230, we end up 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.

Going ahead to step 10:
The number 568 fits into 940 1 times, leaving a remainder of 372.
The next digit of our result is 1. 
Result so far: 77287.21
Subtracting 568 from 940 leaves us with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Advancing to step 11:
The number 568 fits into 3720 6 times, leaving a remainder of 312.
Record the quotient 6 as the next digit in the result. 
Result so far: 77287.216
Subtracting 3408 from 3720 leaves us with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Step 12:
The number 568 fits into 3120 5 times, leaving a remainder of 280.
Use 5 as the next digit of our solution. 
Result so far: 77287.2165
Deduct 2840 from 3120 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 13:
568 can be fit into 2800 4 times, resulting in a remainder of 528.
The number 4 becomes the next digit in our result. 
Result so far: 77287.21654
If we subtract 2272 from 2800, we get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Going ahead to step 14:
568 goes into 5280 9 times with a remainder of 168.
Write down 9 as next digit of the result. 
Result so far: 77287.216549
Subtract 5112 from 5280 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Advancing to step 15:
When dividing 1680 by 568, we get 2 with a remainder of 544.
The next digit of our result is 2. 
Result so far: 77287.2165492
Subtract 1136 from 1680 to get 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Step 16:
568 can be fit into 5440 9 times, resulting in a remainder of 328.
Use 9 as the next digit of our solution. 
Result so far: 77287.21654929
The remainder is 328 after subtracting 5112 from 5440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

After the division, we end up with 77287.21654929 and a remainder of 3.28e-07.