Let's divide 251291 by 78
We want to figure out the number of times 251291 can be divided by 78.

Moving on to step 1:
78 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 78

Moving on to step 2:
78 can be fit into 25 0 times, resulting in a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Include the next digit (1) from the dividend after 25, then repeat: 251 / 78

On to step 3:
78 can be fit into 251 3 times, resulting in a remainder of 17.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 234 from 251 leaves us with 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 78

Let's proceed to step 4:
172 divided by 78 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 32.0
If we subtract 156 from 172, we get 16.
Take the next digit (9) from the dividend and append it to 16, then repeat: 169 / 78

On to step 5:
78 goes into 169 2 times with a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 322.0
Subtracting 156 from 169 leaves us with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 78

Moving on to step 6:
78 can be fit into 131 1 times, resulting in a remainder of 53.
The number 1 becomes the next digit in our result. 
Result so far: 3221.0
If we subtract 78 from 131, 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.

Let's proceed to step 7:
If we divide 530 by 78, we get 6 and a remainder of 62.
The number 6 becomes the next digit in our result. 
Result so far: 3221.6
Subtracting 468 from 530 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 8:
78 goes into 620 7 times with a remainder of 74.
Write down 7 as next digit of the result. 
Result so far: 3221.67
Deduct 546 from 620 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 9:
If we divide 740 by 78, we get 9 and a remainder of 38.
The number 9 becomes the next digit in our result. 
Result so far: 3221.679
Subtract 702 from 740 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 10:
The number 78 fits into 380 4 times, leaving a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 3221.6794
Subtracting 312 from 380 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 11:
The number 78 fits into 680 8 times, leaving a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 3221.67948
Subtract 624 from 680 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 12:
560 divided by 78 is 7 with a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 3221.679487
Subtracting 546 from 560 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 13:
If we divide 140 by 78, we get 1 and a remainder of 62.
Record the quotient 1 as the next digit in the result. 
Result so far: 3221.6794871
Subtracting 78 from 140 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 14:
If we divide 620 by 78, we get 7 and a remainder of 74.
The number 7 becomes the next digit in our result. 
Result so far: 3221.67948717
If we subtract 546 from 620, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

The quotient of the division is 3221.67948717, and the remainder is 7.4e-08.