We look at the division of 398473 by 78 
We want to figure out the number of times 398473 can be divided by 78.

Let's proceed to step 1:
3 divided by 78 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 78

Step 2:
When dividing 39 by 78, we get 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Grab the next digit (8) from the dividend, add it to 39, then carry on: 398 / 78

Advancing to step 3:
78 can be fit into 398 5 times, resulting in a remainder of 8.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 8 after subtracting 390 from 398.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 78

Step 4:
If we divide 84 by 78, we get 1 and a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Subtracting 78 from 84 leaves us with 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 78

Going ahead to step 5:
When dividing 67 by 78, we get 0 with a remainder of 67.
The next digit of our result is 0. 
Result so far: 510.0
If we take 0 away from 67, we end up with 67.
Take the next digit (3) from the dividend and append it to 67, then repeat: 673 / 78

On to step 6:
673 divided by 78 is 8 with a remainder of 49.
Put 8 as the next digit of the answer. 
Result so far: 5108.0
The remainder is 49 after subtracting 624 from 673.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 7:
78 can be fit into 490 6 times, resulting in a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 5108.6
Deduct 468 from 490 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 8:
If we divide 220 by 78, we get 2 and a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 5108.62
If we take 156 away from 220, we end up 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.

Going ahead to step 9:
The number 78 fits into 640 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 5108.628
Subtract 624 from 640 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 10:
If we divide 160 by 78, we get 2 and a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 5108.6282
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.

Step 11:
When dividing 40 by 78, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 5108.6282
Subtracting 0 from 40 leaves us with 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 12:
If we divide 400 by 78, we get 5 and a remainder of 10.
The next digit of our result is 5. 
Result so far: 5108.628205
Subtract 390 from 400 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 13:
78 goes into 100 1 times with a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 5108.6282051
If we take 78 away from 100, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 14:
The number 78 fits into 220 2 times, leaving a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 5108.62820512
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.

In conclusion, the division gives 5108.62820512 with a balance of 6.4e-08.