749408 ÷ 39 
We want to figure out the number of times 749408 can be divided by 39.

Let's proceed to step 1:
7 divided by 39 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 39

Advancing to step 2:
74 divided by 39 is 1 with a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 39 from 74, we get 35.
Bring next digit (9) of the dividend behind the 35 and repeat the process: 359 / 39

Let's proceed to step 3:
If we divide 359 by 39, we get 9 and a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 19.0
If we subtract 351 from 359, we get 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 39

Let's proceed to step 4:
39 goes into 84 2 times with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 192.0
Subtract 78 from 84 to get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 39

Going ahead to step 5:
If we divide 60 by 39, we get 1 and a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 1921.0
If we subtract 39 from 60, we get 21.
Append the next digit (8) from the dividend to 21 and continue with: 218 / 39

Advancing to step 6:
39 goes into 218 5 times with a remainder of 23.
The number 5 becomes the next digit in our result. 
Result so far: 19215.0
The remainder is 23 after subtracting 195 from 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 7:
If we divide 230 by 39, we get 5 and a remainder of 35.
The next digit of our result is 5. 
Result so far: 19215.5
The remainder is 35 after subtracting 195 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 8:
When dividing 350 by 39, we get 8 with a remainder of 38.
Put 8 as the next digit of the answer. 
Result so far: 19215.58
If we subtract 312 from 350, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 9:
380 divided by 39 is 9 with a remainder of 29.
The next digit of our result is 9. 
Result so far: 19215.589
Deduct 351 from 380 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 10:
When dividing 290 by 39, we get 7 with a remainder of 17.
The next digit of our result is 7. 
Result so far: 19215.5897
Deduct 273 from 290 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 11:
When dividing 170 by 39, we get 4 with a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 19215.58974
If we subtract 156 from 170, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 12:
The number 39 fits into 140 3 times, leaving a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 19215.589743
The remainder is 23 after subtracting 117 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 13:
230 divided by 39 is 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 19215.5897435
Subtract 195 from 230 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 14:
If we divide 350 by 39, we get 8 and a remainder of 38.
Write down 8 as next digit of the result. 
Result so far: 19215.58974358
Deduct 312 from 350 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final result is 19215.58974358 with a remainder of 3.8e-08.