781623 divided by 4 
Our goal is to divide 781623 by 4.

Step 1:
7 divided by 4 is 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 4 from 7 and we're left with 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 4

Let's proceed to step 2:
38 divided by 4 is 9 with a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtract 36 from 38 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 4

Let's proceed to step 3:
4 goes into 21 5 times with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 195.0
Deduct 20 from 21 and we're left with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 4

Moving on to step 4:
4 can be fit into 16 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 1954.0
If we subtract 16 from 16, we get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 4

On to step 5:
When dividing 2 by 4, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 19540.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 4

Moving on to step 6:
When dividing 23 by 4, we get 5 with a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 195405.0
If we take 20 away from 23, we end up 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.

Step 7:
The number 4 fits into 30 7 times, leaving a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 195405.7
Subtract 28 from 30 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
4 goes into 20 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 195405.75
Deduct 20 from 20 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
The number 4 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 195405.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 195405.75
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 195405.75, with a leftover of 0.0.