We divide 4242453 by 780
Our goal is to divide 4242453 by 780.

Going ahead to step 1:
4 divided by 780 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 780

Step 2:
780 goes into 42 0 times with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Fetch the next digit (4) from the dividend, attach it to 42 and continue: 424 / 780

Step 3:
780 goes into 424 0 times with a remainder of 424.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 424, we get 424.
Take the next digit (2) from the dividend and append it to 424, then repeat: 4242 / 780

Advancing to step 4:
When dividing 4242 by 780, we get 5 with a remainder of 342.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 3900 from 4242 and we're left with 342.
Include the next digit (4) from the dividend after 342, then repeat: 3424 / 780

Step 5:
780 goes into 3424 4 times with a remainder of 304.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
Subtract 3120 from 3424 to get 304.
Bring next digit (5) of the dividend behind the 304 and repeat the process: 3045 / 780

Step 6:
If we divide 3045 by 780, we get 3 and a remainder of 705.
The number 3 becomes the next digit in our result. 
Result so far: 543.0
Subtracting 2340 from 3045 leaves us with 705.
Take the next digit (3) from the dividend and append it to 705, then repeat: 7053 / 780

Moving on to step 7:
780 goes into 7053 9 times with a remainder of 33.
Record the quotient 9 as the next digit in the result. 
Result so far: 5439.0
Deduct 7020 from 7053 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 8:
When dividing 330 by 780, we get 0 with a remainder of 330.
The next digit of our result is 0. 
Result so far: 5439.0
Deduct 0 from 330 and we're left with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 9:
780 goes into 3300 4 times with a remainder of 180.
Write down 4 as next digit of the result. 
Result so far: 5439.04
If we subtract 3120 from 3300, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 10:
If we divide 1800 by 780, we get 2 and a remainder of 240.
The next digit of our result is 2. 
Result so far: 5439.042
Deduct 1560 from 1800 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 11:
When dividing 2400 by 780, we get 3 with a remainder of 60.
The next digit of our result is 3. 
Result so far: 5439.0423
If we subtract 2340 from 2400, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 12:
When dividing 600 by 780, we get 0 with a remainder of 600.
The number 0 becomes the next digit in our result. 
Result so far: 5439.0423
The remainder is 600 after subtracting 0 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Advancing to step 13:
780 goes into 6000 7 times with a remainder of 540.
Write down 7 as next digit of the result. 
Result so far: 5439.042307
Subtract 5460 from 6000 to get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

On to step 14:
780 goes into 5400 6 times with a remainder of 720.
Put 6 as the next digit of the answer. 
Result so far: 5439.0423076
Subtract 4680 from 5400 to get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

On to step 15:
780 can be fit into 7200 9 times, resulting in a remainder of 180.
The number 9 becomes the next digit in our result. 
Result so far: 5439.04230769
If we subtract 7020 from 7200, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

After the division, we end up with 5439.04230769 and a remainder of 1.8e-07.