866123 ÷ 70 
Our goal is to divide 866123 by 70.

Step 1:
8 divided by 70 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 70

Step 2:
70 can be fit into 86 1 times, resulting in a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 70 from 86, we get 16.
Append the next digit (6) from the dividend to 16 and continue with: 166 / 70

Going ahead to step 3:
If we divide 166 by 70, we get 2 and a remainder of 26.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 26 after subtracting 140 from 166.
Include the next digit (1) from the dividend after 26, then repeat: 261 / 70

Advancing to step 4:
70 goes into 261 3 times with a remainder of 51.
The number 3 becomes the next digit in our result. 
Result so far: 123.0
Deduct 210 from 261 and we're left with 51.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 70

Going ahead to step 5:
The number 70 fits into 512 7 times, leaving a remainder of 22.
The next digit of our result is 7. 
Result so far: 1237.0
Subtract 490 from 512 to get 22.
Grab the next digit (3) from the dividend, add it to 22, then carry on: 223 / 70

Step 6:
The number 70 fits into 223 3 times, leaving a remainder of 13.
The next digit of our result is 3. 
Result so far: 12373.0
The remainder is 13 after subtracting 210 from 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 7:
The number 70 fits into 130 1 times, leaving a remainder of 60.
The next digit of our result is 1. 
Result so far: 12373.1
Subtracting 70 from 130 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 8:
600 divided by 70 is 8 with a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 12373.18
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.

Advancing to step 9:
The number 70 fits into 400 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 12373.185
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.

Going ahead to step 10:
70 can be fit into 500 7 times, resulting in a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 12373.1857
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:
100 divided by 70 is 1 with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 12373.18571
If we take 70 away from 100, we end up 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.

On to step 12:
70 goes into 300 4 times with a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 12373.185714
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.

Advancing to step 13:
200 divided by 70 is 2 with a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 12373.1857142
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.

Advancing to step 14:
The number 70 fits into 600 8 times, leaving a remainder of 40.
The next digit of our result is 8. 
Result so far: 12373.18571428
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.

Our division results in 12373.18571428 with a remaining 4e-08.