Let's divide 420613 by 78
Let's see how many times 78 fits into 420613.

Step 1:
78 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 78

On to step 2:
78 goes into 42 0 times with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Bring next digit (0) of the dividend behind the 42 and repeat the process: 420 / 78

Going ahead to step 3:
If we divide 420 by 78, we get 5 and a remainder of 30.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 390 from 420 and we're left with 30.
Append the next digit (6) from the dividend to 30 and continue with: 306 / 78

Going ahead to step 4:
78 can be fit into 306 3 times, resulting in a remainder of 72.
Use 3 as the next digit of our solution. 
Result so far: 53.0
The remainder is 72 after subtracting 234 from 306.
Append the next digit (1) from the dividend to 72 and continue with: 721 / 78

Let's proceed to step 5:
78 can be fit into 721 9 times, resulting in a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 539.0
If we subtract 702 from 721, we get 19.
Append the next digit (3) from the dividend to 19 and continue with: 193 / 78

Step 6:
If we divide 193 by 78, we get 2 and a remainder of 37.
Put 2 as the next digit of the answer. 
Result so far: 5392.0
If we take 156 away from 193, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 7:
When dividing 370 by 78, we get 4 with a remainder of 58.
Record the quotient 4 as the next digit in the result. 
Result so far: 5392.4
The remainder is 58 after subtracting 312 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 8:
The number 78 fits into 580 7 times, leaving a remainder of 34.
The next digit of our result is 7. 
Result so far: 5392.47
Deduct 546 from 580 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 9:
If we divide 340 by 78, we get 4 and a remainder of 28.
The next digit of our result is 4. 
Result so far: 5392.474
Subtract 312 from 340 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 10:
78 goes into 280 3 times with a remainder of 46.
Write down 3 as next digit of the result. 
Result so far: 5392.4743
If we take 234 away from 280, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 11:
The number 78 fits into 460 5 times, leaving a remainder of 70.
The next digit of our result is 5. 
Result so far: 5392.47435
If we take 390 away from 460, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 12:
700 divided by 78 is 8 with a remainder of 76.
Write down 8 as next digit of the result. 
Result so far: 5392.474358
If we subtract 624 from 700, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 13:
If we divide 760 by 78, we get 9 and a remainder of 58.
Record the quotient 9 as the next digit in the result. 
Result so far: 5392.4743589
If we take 702 away from 760, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 14:
78 goes into 580 7 times with a remainder of 34.
The next digit of our result is 7. 
Result so far: 5392.47435897
Deduct 546 from 580 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final outcome is 5392.47435897, with a leftover of 3.4e-08.