We're dividing 336989 by 78 
We want to divide 336989 by 78.

Advancing to step 1:
3 divided by 78 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 78

Moving on to step 2:
33 divided by 78 is 0 with a remainder of 33.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 33 leaves us with 33.
Include the next digit (6) from the dividend after 33, then repeat: 336 / 78

Going ahead to step 3:
336 divided by 78 is 4 with a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 312 from 336 leaves us with 24.
Append the next digit (9) from the dividend to 24 and continue with: 249 / 78

Let's proceed to step 4:
When dividing 249 by 78, we get 3 with a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
If we take 234 away from 249, we end up with 15.
Take the next digit (8) from the dividend and append it to 15, then repeat: 158 / 78

Moving on to step 5:
78 goes into 158 2 times with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 432.0
The remainder is 2 after subtracting 156 from 158.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 78

Step 6:
78 goes into 29 0 times with a remainder of 29.
Use 0 as the next digit of our solution. 
Result so far: 4320.0
If we subtract 0 from 29, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 7:
The number 78 fits into 290 3 times, leaving a remainder of 56.
Write down 3 as next digit of the result. 
Result so far: 4320.3
If we subtract 234 from 290, we 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.

Moving on to step 8:
If we divide 560 by 78, we get 7 and a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 4320.37
Subtract 546 from 560 to get 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 9:
78 can be fit into 140 1 times, resulting in a remainder of 62.
The next digit of our result is 1. 
Result so far: 4320.371
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.

Going ahead to step 10:
78 goes into 620 7 times with a remainder of 74.
Record the quotient 7 as the next digit in the result. 
Result so far: 4320.3717
The remainder is 74 after subtracting 546 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 11:
When dividing 740 by 78, we get 9 with a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 4320.37179
If we subtract 702 from 740, we 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.

Moving on to step 12:
380 divided by 78 is 4 with a remainder of 68.
Write down 4 as next digit of the result. 
Result so far: 4320.371794
Subtract 312 from 380 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 13:
When dividing 680 by 78, we get 8 with a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 4320.3717948
If we take 624 away from 680, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 14:
78 can be fit into 560 7 times, resulting in a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 4320.37179487
If we subtract 546 from 560, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final outcome is 4320.37179487, with a leftover of 1.4e-08.