We look at the division of 66485681 by 777 
Our goal is to divide 66485681 by 777.

Let's proceed to step 1:
If we divide 6 by 777, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 777

On to step 2:
The number 777 fits into 66 0 times, leaving a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Grab the next digit (4) from the dividend, add it to 66, then carry on: 664 / 777

On to step 3:
777 can be fit into 664 0 times, resulting in a remainder of 664.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 664 and we're left with 664.
Fetch the next digit (8) from the dividend, attach it to 664 and continue: 6648 / 777

Step 4:
777 can be fit into 6648 8 times, resulting in a remainder of 432.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 6216 from 6648, we get 432.
Fetch the next digit (5) from the dividend, attach it to 432 and continue: 4325 / 777

Let's proceed to step 5:
777 goes into 4325 5 times with a remainder of 440.
Put 5 as the next digit of the answer. 
Result so far: 85.0
Subtract 3885 from 4325 to get 440.
Take the next digit (6) from the dividend and append it to 440, then repeat: 4406 / 777

Advancing to step 6:
777 can be fit into 4406 5 times, resulting in a remainder of 521.
Use 5 as the next digit of our solution. 
Result so far: 855.0
Deduct 3885 from 4406 and we're left with 521.
Include the next digit (8) from the dividend after 521, then repeat: 5218 / 777

Going ahead to step 7:
5218 divided by 777 is 6 with a remainder of 556.
Use 6 as the next digit of our solution. 
Result so far: 8556.0
Subtract 4662 from 5218 to get 556.
Include the next digit (1) from the dividend after 556, then repeat: 5561 / 777

Let's proceed to step 8:
When dividing 5561 by 777, we get 7 with a remainder of 122.
Put 7 as the next digit of the answer. 
Result so far: 85567.0
If we subtract 5439 from 5561, we get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Let's proceed to step 9:
1220 divided by 777 is 1 with a remainder of 443.
Put 1 as the next digit of the answer. 
Result so far: 85567.1
Subtracting 777 from 1220 leaves us with 443.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4430, and continue the process.

Step 10:
4430 divided by 777 is 5 with a remainder of 545.
The next digit of our result is 5. 
Result so far: 85567.15
If we take 3885 away from 4430, we end up with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

On to step 11:
When dividing 5450 by 777, we get 7 with a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 85567.157
Subtracting 5439 from 5450 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 12:
When dividing 110 by 777, we get 0 with a remainder of 110.
Use 0 as the next digit of our solution. 
Result so far: 85567.157
The remainder is 110 after subtracting 0 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 13:
If we divide 1100 by 777, we get 1 and a remainder of 323.
Use 1 as the next digit of our solution. 
Result so far: 85567.15701
Subtracting 777 from 1100 leaves us with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

On to step 14:
The number 777 fits into 3230 4 times, leaving a remainder of 122.
Write down 4 as next digit of the result. 
Result so far: 85567.157014
Subtracting 3108 from 3230 leaves us with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 15:
777 goes into 1220 1 times with a remainder of 443.
The number 1 becomes the next digit in our result. 
Result so far: 85567.1570141
If we subtract 777 from 1220, we get 443.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4430, and continue the process.

Advancing to step 16:
4430 divided by 777 is 5 with a remainder of 545.
The number 5 becomes the next digit in our result. 
Result so far: 85567.15701415
Deduct 3885 from 4430 and we're left with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

The final outcome is 85567.15701415, with a leftover of 5.45e-07.