286891 divided by 70 
Our goal is to divide 286891 by 70.

On to step 1:
If we divide 2 by 70, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 70

Step 2:
70 goes into 28 0 times with a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Take the next digit (6) from the dividend and append it to 28, then repeat: 286 / 70

Step 3:
286 divided by 70 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 280 from 286, we get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 70

On to step 4:
When dividing 68 by 70, we get 0 with a remainder of 68.
Write down 0 as next digit of the result. 
Result so far: 40.0
Subtract 0 from 68 to get 68.
Append the next digit (9) from the dividend to 68 and continue with: 689 / 70

Step 5:
70 goes into 689 9 times with a remainder of 59.
The number 9 becomes the next digit in our result. 
Result so far: 409.0
Deduct 630 from 689 and we're left with 59.
Fetch the next digit (1) from the dividend, attach it to 59 and continue: 591 / 70

Step 6:
The number 70 fits into 591 8 times, leaving a remainder of 31.
The next digit of our result is 8. 
Result so far: 4098.0
Subtract 560 from 591 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 7:
The number 70 fits into 310 4 times, leaving a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 4098.4
Subtracting 280 from 310 leaves us 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 8:
300 divided by 70 is 4 with a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 4098.44
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.

Our division results in 4098.44 with a remaining 0.02.