78421124 divided by 489 
We're looking to find how many times 489 goes into 78421124.

Advancing to step 1:
489 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 489

Going ahead to step 2:
The number 489 fits into 78 0 times, leaving a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Grab the next digit (4) from the dividend, add it to 78, then carry on: 784 / 489

Going ahead to step 3:
784 divided by 489 is 1 with a remainder of 295.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 489 from 784 and we're left with 295.
Grab the next digit (2) from the dividend, add it to 295, then carry on: 2952 / 489

Advancing to step 4:
When dividing 2952 by 489, we get 6 with a remainder of 18.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtract 2934 from 2952 to get 18.
Take the next digit (1) from the dividend and append it to 18, then repeat: 181 / 489

Going ahead to step 5:
The number 489 fits into 181 0 times, leaving a remainder of 181.
The next digit of our result is 0. 
Result so far: 160.0
Subtracting 0 from 181 leaves us with 181.
Bring next digit (1) of the dividend behind the 181 and repeat the process: 1811 / 489

On to step 6:
The number 489 fits into 1811 3 times, leaving a remainder of 344.
The next digit of our result is 3. 
Result so far: 1603.0
The remainder is 344 after subtracting 1467 from 1811.
Include the next digit (2) from the dividend after 344, then repeat: 3442 / 489

Moving on to step 7:
3442 divided by 489 is 7 with a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 16037.0
The remainder is 19 after subtracting 3423 from 3442.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 489

Going ahead to step 8:
The number 489 fits into 194 0 times, leaving a remainder of 194.
Record the quotient 0 as the next digit in the result. 
Result so far: 160370.0
Subtracting 0 from 194 leaves us with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Going ahead to step 9:
If we divide 1940 by 489, we get 3 and a remainder of 473.
Record the quotient 3 as the next digit in the result. 
Result so far: 160370.3
Subtracting 1467 from 1940 leaves us with 473.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4730, and continue the process.

Going ahead to step 10:
If we divide 4730 by 489, we get 9 and a remainder of 329.
Write down 9 as next digit of the result. 
Result so far: 160370.39
Subtract 4401 from 4730 to get 329.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

Moving on to step 11:
489 can be fit into 3290 6 times, resulting in a remainder of 356.
Put 6 as the next digit of the answer. 
Result so far: 160370.396
Subtracting 2934 from 3290 leaves us with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Step 12:
When dividing 3560 by 489, we get 7 with a remainder of 137.
The next digit of our result is 7. 
Result so far: 160370.3967
If we subtract 3423 from 3560, we get 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Advancing to step 13:
When dividing 1370 by 489, we get 2 with a remainder of 392.
The number 2 becomes the next digit in our result. 
Result so far: 160370.39672
Subtract 978 from 1370 to get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

On to step 14:
3920 divided by 489 is 8 with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 160370.396728
If we subtract 3912 from 3920, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 15:
80 divided by 489 is 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 160370.396728
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 16:
The number 489 fits into 800 1 times, leaving a remainder of 311.
The number 1 becomes the next digit in our result. 
Result so far: 160370.39672801
If we subtract 489 from 800, we get 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

The final result is 160370.39672801 with a remainder of 3.11e-07.