771770 divided by 86 
We want to figure out the number of times 771770 can be divided by 86.

Moving on to step 1:
The number 86 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 86

On to step 2:
86 can be fit into 77 0 times, resulting in a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Take the next digit (1) from the dividend and append it to 77, then repeat: 771 / 86

Moving on to step 3:
86 can be fit into 771 8 times, resulting in a remainder of 83.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 688 away from 771, we end up with 83.
Bring next digit (7) of the dividend behind the 83 and repeat the process: 837 / 86

Let's proceed to step 4:
837 divided by 86 is 9 with a remainder of 63.
Put 9 as the next digit of the answer. 
Result so far: 89.0
If we take 774 away from 837, we end up with 63.
Take the next digit (7) from the dividend and append it to 63, then repeat: 637 / 86

On to step 5:
86 goes into 637 7 times with a remainder of 35.
Write down 7 as next digit of the result. 
Result so far: 897.0
Subtract 602 from 637 to get 35.
Take the next digit (0) from the dividend and append it to 35, then repeat: 350 / 86

Going ahead to step 6:
The number 86 fits into 350 4 times, leaving a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 8974.0
The remainder is 6 after subtracting 344 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
The number 86 fits into 60 0 times, leaving a remainder of 60.
The next digit of our result is 0. 
Result so far: 8974.0
If we take 0 away from 60, 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 8:
600 divided by 86 is 6 with a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 8974.06
If we subtract 516 from 600, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 9:
86 can be fit into 840 9 times, resulting in a remainder of 66.
The next digit of our result is 9. 
Result so far: 8974.069
Subtracting 774 from 840 leaves us with 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 10:
When dividing 660 by 86, we get 7 with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 8974.0697
The remainder is 58 after subtracting 602 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 11:
86 goes into 580 6 times with a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 8974.06976
Subtracting 516 from 580 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 12:
The number 86 fits into 640 7 times, leaving a remainder of 38.
The next digit of our result is 7. 
Result so far: 8974.069767
If we take 602 away from 640, we end up 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 13:
380 divided by 86 is 4 with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 8974.0697674
Subtracting 344 from 380 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 14:
360 divided by 86 is 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 8974.06976744
Subtract 344 from 360 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 8974.06976744 with a remaining 1.6e-08.