39909 divided by 70 
We want to figure out the number of times 39909 can be divided by 70.

On to step 1:
If we divide 3 by 70, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 70

Going ahead to step 2:
39 divided by 70 is 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 70

Let's proceed to step 3:
When dividing 399 by 70, we get 5 with a remainder of 49.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 350 from 399 leaves us with 49.
Fetch the next digit (0) from the dividend, attach it to 49 and continue: 490 / 70

Advancing to step 4:
70 can be fit into 490 7 times, resulting in a remainder of 0.
The next digit of our result is 7. 
Result so far: 57.0
Subtracting 490 from 490 leaves us with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 70

On to step 5:
9 divided by 70 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 570.0
If we take 0 away from 9, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 6:
70 goes into 90 1 times with a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 570.1
Subtract 70 from 90 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 7:
200 divided by 70 is 2 with a remainder of 60.
The next digit of our result is 2. 
Result so far: 570.12
Subtracting 140 from 200 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
The number 70 fits into 600 8 times, leaving a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 570.128
Deduct 560 from 600 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
70 can be fit into 400 5 times, resulting in a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 570.1285
The remainder is 50 after subtracting 350 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
70 can be fit into 500 7 times, resulting in a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 570.12857
The remainder is 10 after subtracting 490 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
When dividing 100 by 70, we get 1 with a remainder of 30.
Record the quotient 1 as the next digit in the result. 
Result so far: 570.128571
Subtracting 70 from 100 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
If we divide 300 by 70, we get 4 and a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 570.1285714
Subtract 280 from 300 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 13:
70 can be fit into 200 2 times, resulting in a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 570.12857142
The remainder is 60 after subtracting 140 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

After the division, we end up with 570.12857142 and a remainder of 6e-08.