We're dividing 391913 by 70 
We want to figure out the number of times 391913 can be divided by 70.

Let's proceed to step 1:
When dividing 3 by 70, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 70

Let's proceed to step 2:
70 can be fit into 39 0 times, resulting in 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.
Take the next digit (1) from the dividend and append it to 39, then repeat: 391 / 70

Moving on to step 3:
70 can be fit into 391 5 times, resulting in a remainder of 41.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 350 from 391 leaves us with 41.
Bring next digit (9) of the dividend behind the 41 and repeat the process: 419 / 70

Going ahead to step 4:
When dividing 419 by 70, we get 5 with a remainder of 69.
The next digit of our result is 5. 
Result so far: 55.0
Subtracting 350 from 419 leaves us with 69.
Bring next digit (1) of the dividend behind the 69 and repeat the process: 691 / 70

On to step 5:
70 goes into 691 9 times with a remainder of 61.
The number 9 becomes the next digit in our result. 
Result so far: 559.0
Subtract 630 from 691 to get 61.
Append the next digit (3) from the dividend to 61 and continue with: 613 / 70

Going ahead to step 6:
70 goes into 613 8 times with a remainder of 53.
Record the quotient 8 as the next digit in the result. 
Result so far: 5598.0
If we take 560 away from 613, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 7:
If we divide 530 by 70, we get 7 and a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 5598.7
Deduct 490 from 530 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.

Let's proceed to step 8:
70 goes into 400 5 times with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 5598.75
Deduct 350 from 400 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
500 divided by 70 is 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 5598.757
If we take 490 away from 500, we end up 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.

Going ahead to step 10:
100 divided by 70 is 1 with a remainder of 30.
The next digit of our result is 1. 
Result so far: 5598.7571
If we subtract 70 from 100, we get 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 11:
300 divided by 70 is 4 with a remainder of 20.
The next digit of our result is 4. 
Result so far: 5598.75714
Subtracting 280 from 300 leaves us with 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 12:
70 can be fit into 200 2 times, resulting in a remainder of 60.
Write down 2 as next digit of the result. 
Result so far: 5598.757142
If we take 140 away from 200, we end up 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 13:
70 can be fit into 600 8 times, resulting in a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 5598.7571428
If we take 560 away from 600, we end up 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.

Moving on to step 14:
70 can be fit into 400 5 times, resulting in a remainder of 50.
The next digit of our result is 5. 
Result so far: 5598.75714285
If we take 350 away from 400, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 5598.75714285, with a leftover of 5e-08.