We're dividing 78866951 by 489 
We want to figure out the number of times 78866951 can be divided by 489.

Going ahead to step 1:
7 divided by 489 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 489

Going ahead to step 2:
78 divided by 489 is 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Include the next digit (8) from the dividend after 78, then repeat: 788 / 489

Let's proceed to step 3:
If we divide 788 by 489, we get 1 and a remainder of 299.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 299 after subtracting 489 from 788.
Fetch the next digit (6) from the dividend, attach it to 299 and continue: 2996 / 489

Step 4:
If we divide 2996 by 489, we get 6 and a remainder of 62.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Deduct 2934 from 2996 and we're left with 62.
Append the next digit (6) from the dividend to 62 and continue with: 626 / 489

Moving on to step 5:
489 goes into 626 1 times with a remainder of 137.
Put 1 as the next digit of the answer. 
Result so far: 161.0
If we subtract 489 from 626, we get 137.
Grab the next digit (9) from the dividend, add it to 137, then carry on: 1379 / 489

Advancing to step 6:
If we divide 1379 by 489, we get 2 and a remainder of 401.
Write down 2 as next digit of the result. 
Result so far: 1612.0
Subtract 978 from 1379 to get 401.
Include the next digit (5) from the dividend after 401, then repeat: 4015 / 489

Let's proceed to step 7:
489 goes into 4015 8 times with a remainder of 103.
Put 8 as the next digit of the answer. 
Result so far: 16128.0
The remainder is 103 after subtracting 3912 from 4015.
Fetch the next digit (1) from the dividend, attach it to 103 and continue: 1031 / 489

Moving on to step 8:
1031 divided by 489 is 2 with a remainder of 53.
Write down 2 as next digit of the result. 
Result so far: 161282.0
If we subtract 978 from 1031, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 9:
489 can be fit into 530 1 times, resulting in a remainder of 41.
The next digit of our result is 1. 
Result so far: 161282.1
Subtract 489 from 530 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 10:
489 can be fit into 410 0 times, resulting in a remainder of 410.
Write down 0 as next digit of the result. 
Result so far: 161282.1
If we subtract 0 from 410, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Moving on to step 11:
489 can be fit into 4100 8 times, resulting in a remainder of 188.
Put 8 as the next digit of the answer. 
Result so far: 161282.108
If we take 3912 away from 4100, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Step 12:
If we divide 1880 by 489, we get 3 and a remainder of 413.
Use 3 as the next digit of our solution. 
Result so far: 161282.1083
Subtract 1467 from 1880 to get 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

On to step 13:
When dividing 4130 by 489, we get 8 with a remainder of 218.
Write down 8 as next digit of the result. 
Result so far: 161282.10838
If we take 3912 away from 4130, we end up with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Going ahead to step 14:
If we divide 2180 by 489, we get 4 and a remainder of 224.
Write down 4 as next digit of the result. 
Result so far: 161282.108384
The remainder is 224 after subtracting 1956 from 2180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Moving on to step 15:
489 can be fit into 2240 4 times, resulting in a remainder of 284.
The number 4 becomes the next digit in our result. 
Result so far: 161282.1083844
If we subtract 1956 from 2240, we get 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Our division results in 161282.1083844 with a remaining 2.84e-06.