We divide 646515 by 70
We want to figure out the number of times 646515 can be divided by 70.

On to step 1:
If we divide 6 by 70, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 70

On to step 2:
The number 70 fits into 64 0 times, leaving a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Grab the next digit (6) from the dividend, add it to 64, then carry on: 646 / 70

Going ahead to step 3:
When dividing 646 by 70, we get 9 with a remainder of 16.
The next digit of our result is 9. 
Result so far: 9.0
If we take 630 away from 646, we end up with 16.
Bring next digit (5) of the dividend behind the 16 and repeat the process: 165 / 70

Step 4:
If we divide 165 by 70, we get 2 and a remainder of 25.
The number 2 becomes the next digit in our result. 
Result so far: 92.0
Subtracting 140 from 165 leaves us with 25.
Include the next digit (1) from the dividend after 25, then repeat: 251 / 70

Advancing to step 5:
70 can be fit into 251 3 times, resulting in a remainder of 41.
Use 3 as the next digit of our solution. 
Result so far: 923.0
If we subtract 210 from 251, we get 41.
Take the next digit (5) from the dividend and append it to 41, then repeat: 415 / 70

Step 6:
70 can be fit into 415 5 times, resulting in a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 9235.0
The remainder is 65 after subtracting 350 from 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 7:
The number 70 fits into 650 9 times, leaving a remainder of 20.
The next digit of our result is 9. 
Result so far: 9235.9
Deduct 630 from 650 and we're left 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.

Let's proceed to step 8:
70 goes into 200 2 times with a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 9235.92
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.

Step 9:
600 divided by 70 is 8 with a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 9235.928
Subtract 560 from 600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
70 goes into 400 5 times with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 9235.9285
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 11:
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: 9235.92857
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.

On to step 12:
70 can be fit into 100 1 times, resulting in a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 9235.928571
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.

Step 13:
70 can be fit into 300 4 times, resulting in a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 9235.9285714
If we take 280 away from 300, we end up 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.

Advancing to step 14:
70 can be fit into 200 2 times, resulting in a remainder of 60.
Record the quotient 2 as the next digit in the result. 
Result so far: 9235.92857142
Deduct 140 from 200 and we're left 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.

The final outcome is 9235.92857142, with a leftover of 6e-08.