We look at the division of 878485 by 66 
Our goal is to divide 878485 by 66.

Let's proceed to step 1:
If we divide 8 by 66, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 66

Advancing to step 2:
If we divide 87 by 66, we get 1 and a remainder of 21.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 66 from 87 leaves us with 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 66

Moving on to step 3:
When dividing 218 by 66, we get 3 with a remainder of 20.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we subtract 198 from 218, we get 20.
Bring next digit (4) of the dividend behind the 20 and repeat the process: 204 / 66

On to step 4:
66 can be fit into 204 3 times, resulting in a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 133.0
Subtract 198 from 204 to get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 66

Step 5:
If we divide 68 by 66, we get 1 and a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1331.0
Subtract 66 from 68 to get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 66

Moving on to step 6:
66 can be fit into 25 0 times, resulting in a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 13310.0
If we take 0 away from 25, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 7:
When dividing 250 by 66, we get 3 with a remainder of 52.
Put 3 as the next digit of the answer. 
Result so far: 13310.3
Deduct 198 from 250 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 8:
66 goes into 520 7 times with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 13310.37
If we take 462 away from 520, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 9:
When dividing 580 by 66, we get 8 with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 13310.378
Deduct 528 from 580 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 10:
66 goes into 520 7 times with a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 13310.3787
The remainder is 58 after subtracting 462 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 11:
If we divide 580 by 66, we get 8 and a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 13310.37878
If we subtract 528 from 580, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 12:
520 divided by 66 is 7 with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 13310.378787
Subtract 462 from 520 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 13:
580 divided by 66 is 8 with a remainder of 52.
The next digit of our result is 8. 
Result so far: 13310.3787878
Subtracting 528 from 580 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 14:
520 divided by 66 is 7 with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 13310.37878787
Subtract 462 from 520 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Our division results in 13310.37878787 with a remaining 5.8e-08.