Let's divide 53951278 by 678
We're looking to find how many times 678 goes into 53951278.

Step 1:
The number 678 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 678

Moving on to step 2:
53 divided by 678 is 0 with a remainder of 53.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 53 to get 53.
Grab the next digit (9) from the dividend, add it to 53, then carry on: 539 / 678

Step 3:
678 can be fit into 539 0 times, resulting in a remainder of 539.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 539, we get 539.
Fetch the next digit (5) from the dividend, attach it to 539 and continue: 5395 / 678

Step 4:
When dividing 5395 by 678, we get 7 with a remainder of 649.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 4746 from 5395, we get 649.
Append the next digit (1) from the dividend to 649 and continue with: 6491 / 678

Moving on to step 5:
678 goes into 6491 9 times with a remainder of 389.
The next digit of our result is 9. 
Result so far: 79.0
Subtracting 6102 from 6491 leaves us with 389.
Grab the next digit (2) from the dividend, add it to 389, then carry on: 3892 / 678

Advancing to step 6:
When dividing 3892 by 678, we get 5 with a remainder of 502.
Put 5 as the next digit of the answer. 
Result so far: 795.0
If we subtract 3390 from 3892, we get 502.
Include the next digit (7) from the dividend after 502, then repeat: 5027 / 678

Let's proceed to step 7:
The number 678 fits into 5027 7 times, leaving a remainder of 281.
Record the quotient 7 as the next digit in the result. 
Result so far: 7957.0
If we take 4746 away from 5027, we end up with 281.
Take the next digit (8) from the dividend and append it to 281, then repeat: 2818 / 678

Advancing to step 8:
If we divide 2818 by 678, we get 4 and a remainder of 106.
Record the quotient 4 as the next digit in the result. 
Result so far: 79574.0
The remainder is 106 after subtracting 2712 from 2818.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Step 9:
The number 678 fits into 1060 1 times, leaving a remainder of 382.
The number 1 becomes the next digit in our result. 
Result so far: 79574.1
Deduct 678 from 1060 and we're left with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Going ahead to step 10:
If we divide 3820 by 678, we get 5 and a remainder of 430.
The next digit of our result is 5. 
Result so far: 79574.15
Subtracting 3390 from 3820 leaves us with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Step 11:
When dividing 4300 by 678, we get 6 with a remainder of 232.
Put 6 as the next digit of the answer. 
Result so far: 79574.156
Subtracting 4068 from 4300 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Going ahead to step 12:
678 goes into 2320 3 times with a remainder of 286.
The next digit of our result is 3. 
Result so far: 79574.1563
Deduct 2034 from 2320 and we're left with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Let's proceed to step 13:
The number 678 fits into 2860 4 times, leaving a remainder of 148.
The next digit of our result is 4. 
Result so far: 79574.15634
Deduct 2712 from 2860 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Moving on to step 14:
The number 678 fits into 1480 2 times, leaving a remainder of 124.
The next digit of our result is 2. 
Result so far: 79574.156342
The remainder is 124 after subtracting 1356 from 1480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 15:
678 goes into 1240 1 times with a remainder of 562.
Use 1 as the next digit of our solution. 
Result so far: 79574.1563421
If we subtract 678 from 1240, we get 562.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5620, and continue the process.

Advancing to step 16:
The number 678 fits into 5620 8 times, leaving a remainder of 196.
The next digit of our result is 8. 
Result so far: 79574.15634218
Deduct 5424 from 5620 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

The final outcome is 79574.15634218, with a leftover of 1.96e-07.