686539 divided by 70 
We want to figure out the number of times 686539 can be divided by 70.

Let's proceed to step 1:
6 divided by 70 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 70

Going ahead to step 2:
70 can be fit into 68 0 times, resulting in a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Include the next digit (6) from the dividend after 68, then repeat: 686 / 70

On to step 3:
70 can be fit into 686 9 times, resulting in a remainder of 56.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we subtract 630 from 686, we get 56.
Append the next digit (5) from the dividend to 56 and continue with: 565 / 70

Moving on to step 4:
If we divide 565 by 70, we get 8 and a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 98.0
Subtract 560 from 565 to get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 70

Advancing to step 5:
When dividing 53 by 70, we get 0 with a remainder of 53.
The next digit of our result is 0. 
Result so far: 980.0
If we take 0 away from 53, we end up with 53.
Include the next digit (9) from the dividend after 53, then repeat: 539 / 70

Advancing to step 6:
If we divide 539 by 70, we get 7 and a remainder of 49.
Record the quotient 7 as the next digit in the result. 
Result so far: 9807.0
If we subtract 490 from 539, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 7:
When dividing 490 by 70, we get 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 9807.7
The remainder is 0 after subtracting 490 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
70 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 9807.7
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
0 divided by 70 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 9807.7
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 9807.7 with a remaining 0.0.