We're dividing 771457 by 86 
We want to divide 771457 by 86.

On to step 1:
The number 86 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 86

Going ahead to step 2:
86 goes into 77 0 times with a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 77 leaves us with 77.
Include the next digit (1) from the dividend after 77, then repeat: 771 / 86

Let's proceed to step 3:
771 divided by 86 is 8 with a remainder of 83.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 83 after subtracting 688 from 771.
Take the next digit (4) from the dividend and append it to 83, then repeat: 834 / 86

On to step 4:
If we divide 834 by 86, we get 9 and a remainder of 60.
Record the quotient 9 as the next digit in the result. 
Result so far: 89.0
Deduct 774 from 834 and we're left with 60.
Take the next digit (5) from the dividend and append it to 60, then repeat: 605 / 86

Let's proceed to step 5:
When dividing 605 by 86, we get 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 897.0
If we take 602 away from 605, we end up with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 86

On to step 6:
37 divided by 86 is 0 with a remainder of 37.
The number 0 becomes the next digit in our result. 
Result so far: 8970.0
If we take 0 away from 37, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
370 divided by 86 is 4 with a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 8970.4
If we take 344 away from 370, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 8:
The number 86 fits into 260 3 times, leaving a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 8970.43
If we take 258 away from 260, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
If we divide 20 by 86, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 8970.43
Deduct 0 from 20 and we're left 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.

Let's proceed to step 10:
86 can be fit into 200 2 times, resulting in a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 8970.4302
If we subtract 172 from 200, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 11:
86 can be fit into 280 3 times, resulting in a remainder of 22.
Write down 3 as next digit of the result. 
Result so far: 8970.43023
Subtracting 258 from 280 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 12:
The number 86 fits into 220 2 times, leaving a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 8970.430232
If we subtract 172 from 220, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 13:
The number 86 fits into 480 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 8970.4302325
If we take 430 away from 480, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 14:
86 goes into 500 5 times with a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 8970.43023255
Deduct 430 from 500 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

In conclusion, the division gives 8970.43023255 with a balance of 7e-08.