Let's divide 321502 by 78
We're looking to find how many times 78 goes into 321502.

Going ahead to step 1:
78 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 78

Advancing to step 2:
78 goes into 32 0 times with a remainder of 32.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 32 and we're left with 32.
Include the next digit (1) from the dividend after 32, then repeat: 321 / 78

Going ahead to step 3:
78 can be fit into 321 4 times, resulting in a remainder of 9.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 312 from 321 to get 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 78

Let's proceed to step 4:
If we divide 95 by 78, we get 1 and a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
Deduct 78 from 95 and we're left with 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 78

On to step 5:
When dividing 170 by 78, we get 2 with a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 412.0
Deduct 156 from 170 and we're left with 14.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 78

Step 6:
When dividing 142 by 78, we get 1 with a remainder of 64.
Use 1 as the next digit of our solution. 
Result so far: 4121.0
The remainder is 64 after subtracting 78 from 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 7:
When dividing 640 by 78, we get 8 with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 4121.8
The remainder is 16 after subtracting 624 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
The number 78 fits into 160 2 times, leaving a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 4121.82
Subtract 156 from 160 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
The number 78 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 4121.82
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
The number 78 fits into 400 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 4121.8205
Deduct 390 from 400 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
100 divided by 78 is 1 with a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 4121.82051
Subtract 78 from 100 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 12:
78 goes into 220 2 times with a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 4121.820512
Subtracting 156 from 220 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 13:
78 goes into 640 8 times with a remainder of 16.
The next digit of our result is 8. 
Result so far: 4121.8205128
Subtracting 624 from 640 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 14:
160 divided by 78 is 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 4121.82051282
Subtract 156 from 160 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 4121.82051282, and the remainder is 4e-09.