39865109 ÷ 424 
We're looking to find how many times 424 goes into 39865109.

Going ahead to step 1:
424 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 424

Going ahead to step 2:
39 divided by 424 is 0 with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Take the next digit (8) from the dividend and append it to 39, then repeat: 398 / 424

Let's proceed to step 3:
398 divided by 424 is 0 with a remainder of 398.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 398, we get 398.
Take the next digit (6) from the dividend and append it to 398, then repeat: 3986 / 424

Going ahead to step 4:
When dividing 3986 by 424, we get 9 with a remainder of 170.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtracting 3816 from 3986 leaves us with 170.
Include the next digit (5) from the dividend after 170, then repeat: 1705 / 424

On to step 5:
1705 divided by 424 is 4 with a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 94.0
If we take 1696 away from 1705, we end up with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 424

Moving on to step 6:
91 divided by 424 is 0 with a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 940.0
Deduct 0 from 91 and we're left with 91.
Append the next digit (0) from the dividend to 91 and continue with: 910 / 424

Let's proceed to step 7:
When dividing 910 by 424, we get 2 with a remainder of 62.
Record the quotient 2 as the next digit in the result. 
Result so far: 9402.0
Deduct 848 from 910 and we're left with 62.
Append the next digit (9) from the dividend to 62 and continue with: 629 / 424

Moving on to step 8:
The number 424 fits into 629 1 times, leaving a remainder of 205.
The next digit of our result is 1. 
Result so far: 94021.0
If we subtract 424 from 629, we get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Moving on to step 9:
424 can be fit into 2050 4 times, resulting in a remainder of 354.
Use 4 as the next digit of our solution. 
Result so far: 94021.4
Subtracting 1696 from 2050 leaves us with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Step 10:
If we divide 3540 by 424, we get 8 and a remainder of 148.
Record the quotient 8 as the next digit in the result. 
Result so far: 94021.48
Subtract 3392 from 3540 to get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

On to step 11:
424 goes into 1480 3 times with a remainder of 208.
Write down 3 as next digit of the result. 
Result so far: 94021.483
Deduct 1272 from 1480 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Going ahead to step 12:
If we divide 2080 by 424, we get 4 and a remainder of 384.
The number 4 becomes the next digit in our result. 
Result so far: 94021.4834
The remainder is 384 after subtracting 1696 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Advancing to step 13:
3840 divided by 424 is 9 with a remainder of 24.
Put 9 as the next digit of the answer. 
Result so far: 94021.48349
Subtract 3816 from 3840 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 14:
240 divided by 424 is 0 with a remainder of 240.
Write down 0 as next digit of the result. 
Result so far: 94021.48349
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 15:
424 goes into 2400 5 times with a remainder of 280.
Use 5 as the next digit of our solution. 
Result so far: 94021.4834905
Deduct 2120 from 2400 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.

Advancing to step 16:
424 can be fit into 2800 6 times, resulting in a remainder of 256.
Write down 6 as next digit of the result. 
Result so far: 94021.48349056
Deduct 2544 from 2800 and we're left with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

The final outcome is 94021.48349056, with a leftover of 2.56e-07.