243916 ÷ 39 
We want to figure out the number of times 243916 can be divided by 39.

Let's proceed to step 1:
The number 39 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 39

On to step 2:
The number 39 fits into 24 0 times, leaving a remainder of 24.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 24 to get 24.
Append the next digit (3) from the dividend to 24 and continue with: 243 / 39

Advancing to step 3:
243 divided by 39 is 6 with a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 9 after subtracting 234 from 243.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 39

Moving on to step 4:
When dividing 99 by 39, we get 2 with a remainder of 21.
Record the quotient 2 as the next digit in the result. 
Result so far: 62.0
Subtracting 78 from 99 leaves us with 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 39

Step 5:
If we divide 211 by 39, we get 5 and a remainder of 16.
Use 5 as the next digit of our solution. 
Result so far: 625.0
If we take 195 away from 211, we end up with 16.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 39

Advancing to step 6:
When dividing 166 by 39, we get 4 with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 6254.0
Subtracting 156 from 166 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 7:
100 divided by 39 is 2 with a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 6254.2
Subtracting 78 from 100 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 8:
220 divided by 39 is 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 6254.25
If we take 195 away from 220, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 9:
When dividing 250 by 39, we get 6 with a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 6254.256
Subtracting 234 from 250 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
When dividing 160 by 39, we get 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 6254.2564
Subtract 156 from 160 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 11:
39 goes into 40 1 times with a remainder of 1.
The next digit of our result is 1. 
Result so far: 6254.25641
Deduct 39 from 40 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 12:
If we divide 10 by 39, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 6254.25641
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 13:
The number 39 fits into 100 2 times, leaving a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 6254.2564102
Subtract 78 from 100 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 14:
When dividing 220 by 39, we get 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 6254.25641025
Subtracting 195 from 220 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 6254.25641025, with a leftover of 2.5e-08.