78558 ÷ 81 
We want to divide 78558 by 81.

Going ahead to step 1:
The number 81 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 81

Step 2:
When dividing 78 by 81, we get 0 with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Take the next digit (5) from the dividend and append it to 78, then repeat: 785 / 81

Moving on to step 3:
81 can be fit into 785 9 times, resulting in a remainder of 56.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 729 away from 785, we end up with 56.
Append the next digit (5) from the dividend to 56 and continue with: 565 / 81

Moving on to step 4:
565 divided by 81 is 6 with a remainder of 79.
The next digit of our result is 6. 
Result so far: 96.0
Deduct 486 from 565 and we're left with 79.
Grab the next digit (8) from the dividend, add it to 79, then carry on: 798 / 81

Going ahead to step 5:
798 divided by 81 is 9 with a remainder of 69.
Put 9 as the next digit of the answer. 
Result so far: 969.0
If we take 729 away from 798, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 6:
690 divided by 81 is 8 with a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 969.8
If we subtract 648 from 690, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 7:
When dividing 420 by 81, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 969.85
Subtract 405 from 420 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 8:
81 goes into 150 1 times with a remainder of 69.
Record the quotient 1 as the next digit in the result. 
Result so far: 969.851
If we subtract 81 from 150, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Going ahead to step 9:
When dividing 690 by 81, we get 8 with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 969.8518
Subtract 648 from 690 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 10:
If we divide 420 by 81, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 969.85185
If we subtract 405 from 420, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 11:
150 divided by 81 is 1 with a remainder of 69.
The number 1 becomes the next digit in our result. 
Result so far: 969.851851
If we take 81 away from 150, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 12:
If we divide 690 by 81, we get 8 and a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 969.8518518
If we subtract 648 from 690, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 13:
420 divided by 81 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 969.85185185
If we subtract 405 from 420, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 969.85185185, and the remainder is 1.5e-08.