We're dividing 39408500 by 39 
We want to figure out the number of times 39408500 can be divided by 39.

Going ahead to step 1:
When dividing 3 by 39, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 39

Moving on to step 2:
39 can be fit into 39 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 0 after subtracting 39 from 39.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 39

Advancing to step 3:
When dividing 4 by 39, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 39

On to step 4:
When dividing 40 by 39, we get 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 101.0
Subtract 39 from 40 to get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 39

Let's proceed to step 5:
The number 39 fits into 18 0 times, leaving a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 1010.0
If we subtract 0 from 18, we get 18.
Include the next digit (5) from the dividend after 18, then repeat: 185 / 39

Advancing to step 6:
39 can be fit into 185 4 times, resulting in a remainder of 29.
Record the quotient 4 as the next digit in the result. 
Result so far: 10104.0
Subtract 156 from 185 to get 29.
Append the next digit (0) from the dividend to 29 and continue with: 290 / 39

Advancing to step 7:
When dividing 290 by 39, we get 7 with a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 101047.0
Subtract 273 from 290 to get 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 39

Moving on to step 8:
The number 39 fits into 170 4 times, leaving a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 1010474.0
If we take 156 away from 170, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 9:
If we divide 140 by 39, we get 3 and a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 1010474.3
If we subtract 117 from 140, we get 23.
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 10:
If we divide 230 by 39, we get 5 and a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 1010474.35
If we take 195 away from 230, we end up with 35.
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 11:
350 divided by 39 is 8 with a remainder of 38.
Write down 8 as next digit of the result. 
Result so far: 1010474.358
Subtract 312 from 350 to 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.

On to step 12:
When dividing 380 by 39, we get 9 with a remainder of 29.
Use 9 as the next digit of our solution. 
Result so far: 1010474.3589
If we subtract 351 from 380, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 13:
The number 39 fits into 290 7 times, leaving a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 1010474.35897
If we subtract 273 from 290, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 14:
170 divided by 39 is 4 with a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 1010474.358974
Subtract 156 from 170 to 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.

Step 15:
When dividing 140 by 39, we get 3 with a remainder of 23.
Record the quotient 3 as the next digit in the result. 
Result so far: 1010474.3589743
Subtracting 117 from 140 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 16:
When dividing 230 by 39, we get 5 with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 1010474.35897435
Deduct 195 from 230 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Our division results in 1010474.35897435 with a remaining 3.5e-08.