861647 ÷ 70 
Let's see how many times 70 fits into 861647.

Moving on to step 1:
When dividing 8 by 70, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 70

Going ahead to step 2:
70 can be fit into 86 1 times, resulting in a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 16 after subtracting 70 from 86.
Grab the next digit (1) from the dividend, add it to 16, then carry on: 161 / 70

On to step 3:
70 can be fit into 161 2 times, resulting in a remainder of 21.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 140 from 161 leaves us with 21.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 70

On to step 4:
When dividing 216 by 70, we get 3 with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 123.0
If we subtract 210 from 216, we get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 70

Step 5:
The number 70 fits into 64 0 times, leaving a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 1230.0
Subtract 0 from 64 to get 64.
Grab the next digit (7) from the dividend, add it to 64, then carry on: 647 / 70

Step 6:
70 goes into 647 9 times with a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 12309.0
Subtract 630 from 647 to 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.

Moving on to step 7:
70 can be fit into 170 2 times, resulting in a remainder of 30.
Write down 2 as next digit of the result. 
Result so far: 12309.2
Subtract 140 from 170 to 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.

Moving on to step 8:
If we divide 300 by 70, we get 4 and a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 12309.24
If we subtract 280 from 300, we 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 9:
200 divided by 70 is 2 with a remainder of 60.
The next digit of our result is 2. 
Result so far: 12309.242
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.

Moving on to step 10:
70 goes into 600 8 times with a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 12309.2428
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.

Moving on to step 11:
70 can be fit into 400 5 times, resulting in a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 12309.24285
Subtract 350 from 400 to get 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 12:
70 goes into 500 7 times with a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 12309.242857
Subtracting 490 from 500 leaves us 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.

Advancing to step 13:
When dividing 100 by 70, we get 1 with a remainder of 30.
The next digit of our result is 1. 
Result so far: 12309.2428571
The remainder is 30 after subtracting 70 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 14:
When dividing 300 by 70, we get 4 with a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 12309.24285714
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.

The final result is 12309.24285714 with a remainder of 2e-08.