673811 divided by 86 
Our goal is to divide 673811 by 86.

Advancing to step 1:
6 divided by 86 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 86

Let's proceed to step 2:
The number 86 fits into 67 0 times, leaving a remainder of 67.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 67 leaves us with 67.
Append the next digit (3) from the dividend to 67 and continue with: 673 / 86

Advancing to step 3:
When dividing 673 by 86, we get 7 with a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 602 from 673 and we're left with 71.
Append the next digit (8) from the dividend to 71 and continue with: 718 / 86

Going ahead to step 4:
When dividing 718 by 86, we get 8 with a remainder of 30.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtracting 688 from 718 leaves us with 30.
Take the next digit (1) from the dividend and append it to 30, then repeat: 301 / 86

Let's proceed to step 5:
If we divide 301 by 86, we get 3 and a remainder of 43.
Record the quotient 3 as the next digit in the result. 
Result so far: 783.0
Subtract 258 from 301 to get 43.
Include the next digit (1) from the dividend after 43, then repeat: 431 / 86

Step 6:
86 goes into 431 5 times with a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 7835.0
Subtract 430 from 431 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
10 divided by 86 is 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 7835.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
If we divide 100 by 86, we get 1 and a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 7835.01
The remainder is 14 after subtracting 86 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 9:
The number 86 fits into 140 1 times, leaving a remainder of 54.
Put 1 as the next digit of the answer. 
Result so far: 7835.011
If we subtract 86 from 140, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The final result is 7835.011 with a remainder of 0.0054.