We look at the division of 781781 by 86 
Our goal is to divide 781781 by 86.

On to 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 subtract 0 from 7, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 86

Let's proceed to step 2:
When dividing 78 by 86, we get 0 with a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Grab the next digit (1) from the dividend, add it to 78, then carry on: 781 / 86

Moving on to step 3:
When dividing 781 by 86, we get 9 with a remainder of 7.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 774 from 781 to get 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 86

Moving on to step 4:
When dividing 77 by 86, we get 0 with a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 90.0
Subtract 0 from 77 to get 77.
Grab the next digit (8) from the dividend, add it to 77, then carry on: 778 / 86

On to step 5:
778 divided by 86 is 9 with a remainder of 4.
The next digit of our result is 9. 
Result so far: 909.0
Subtracting 774 from 778 leaves us with 4.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 86

On to step 6:
If we divide 41 by 86, we get 0 and a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 9090.0
Subtracting 0 from 41 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 7:
The number 86 fits into 410 4 times, leaving a remainder of 66.
Use 4 as the next digit of our solution. 
Result so far: 9090.4
Subtract 344 from 410 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 8:
The number 86 fits into 660 7 times, leaving a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 9090.47
If we subtract 602 from 660, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 9:
580 divided by 86 is 6 with a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 9090.476
Subtract 516 from 580 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 10:
640 divided by 86 is 7 with a remainder of 38.
The next digit of our result is 7. 
Result so far: 9090.4767
Deduct 602 from 640 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 11:
86 goes into 380 4 times with a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 9090.47674
If we subtract 344 from 380, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 12:
360 divided by 86 is 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 9090.476744
Subtracting 344 from 360 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 9090.476744 with a balance of 1.6e-06.