702839 ÷ 86 
We want to divide 702839 by 86.

Step 1:
The number 86 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 86

Going ahead to step 2:
If we divide 70 by 86, we get 0 and a remainder of 70.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Append the next digit (2) from the dividend to 70 and continue with: 702 / 86

Let's proceed to step 3:
86 can be fit into 702 8 times, resulting in a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 688 from 702 and we're left with 14.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 86

Moving on to step 4:
When dividing 148 by 86, we get 1 with a remainder of 62.
The next digit of our result is 1. 
Result so far: 81.0
Subtracting 86 from 148 leaves us with 62.
Append the next digit (3) from the dividend to 62 and continue with: 623 / 86

Advancing to step 5:
The number 86 fits into 623 7 times, leaving a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 817.0
If we subtract 602 from 623, we get 21.
Fetch the next digit (9) from the dividend, attach it to 21 and continue: 219 / 86

Let's proceed to step 6:
If we divide 219 by 86, we get 2 and a remainder of 47.
Write down 2 as next digit of the result. 
Result so far: 8172.0
Deduct 172 from 219 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 7:
The number 86 fits into 470 5 times, leaving a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 8172.5
Deduct 430 from 470 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.

Step 8:
If we divide 400 by 86, we get 4 and a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 8172.54
Subtracting 344 from 400 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 9:
When dividing 560 by 86, we get 6 with a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 8172.546
If we take 516 away from 560, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 10:
When dividing 440 by 86, we get 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 8172.5465
If we subtract 430 from 440, we get 10.
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:
86 can be fit into 100 1 times, resulting in a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 8172.54651
Deduct 86 from 100 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 12:
86 goes into 140 1 times with a remainder of 54.
Put 1 as the next digit of the answer. 
Result so far: 8172.546511
If we take 86 away from 140, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Our division results in 8172.546511 with a remaining 5.4e-06.