346557 ÷ 78 
We want to divide 346557 by 78.

Going ahead to step 1:
3 divided by 78 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 78

Let's proceed to step 2:
78 goes into 34 0 times with a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 34 and we're left with 34.
Grab the next digit (6) from the dividend, add it to 34, then carry on: 346 / 78

Advancing to step 3:
The number 78 fits into 346 4 times, leaving a remainder of 34.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 312 from 346 to get 34.
Take the next digit (5) from the dividend and append it to 34, then repeat: 345 / 78

Going ahead to step 4:
If we divide 345 by 78, we get 4 and a remainder of 33.
The next digit of our result is 4. 
Result so far: 44.0
The remainder is 33 after subtracting 312 from 345.
Append the next digit (5) from the dividend to 33 and continue with: 335 / 78

Let's proceed to step 5:
78 goes into 335 4 times with a remainder of 23.
Record the quotient 4 as the next digit in the result. 
Result so far: 444.0
The remainder is 23 after subtracting 312 from 335.
Grab the next digit (7) from the dividend, add it to 23, then carry on: 237 / 78

Going ahead to step 6:
78 can be fit into 237 3 times, resulting in a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 4443.0
Deduct 234 from 237 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
When dividing 30 by 78, we get 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 4443.0
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
When dividing 300 by 78, we get 3 with a remainder of 66.
The next digit of our result is 3. 
Result so far: 4443.03
Subtract 234 from 300 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 9:
When dividing 660 by 78, we get 8 with a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 4443.038
If we take 624 away from 660, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 10:
If we divide 360 by 78, we get 4 and a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 4443.0384
Subtracting 312 from 360 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 11:
480 divided by 78 is 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 4443.03846
Subtracting 468 from 480 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 12:
78 goes into 120 1 times with a remainder of 42.
Put 1 as the next digit of the answer. 
Result so far: 4443.038461
If we take 78 away from 120, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 13:
420 divided by 78 is 5 with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 4443.0384615
If we take 390 away from 420, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 14:
78 can be fit into 300 3 times, resulting in a remainder of 66.
Use 3 as the next digit of our solution. 
Result so far: 4443.03846153
If we subtract 234 from 300, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final outcome is 4443.03846153, with a leftover of 6.6e-08.