We divide 4129090 by 780
We're looking to find how many times 780 goes into 4129090.

Moving on to step 1:
780 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 780

On to step 2:
If we divide 41 by 780, we get 0 and a remainder of 41.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 41, we end up with 41.
Include the next digit (2) from the dividend after 41, then repeat: 412 / 780

Let's proceed to step 3:
412 divided by 780 is 0 with a remainder of 412.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 412 to get 412.
Bring next digit (9) of the dividend behind the 412 and repeat the process: 4129 / 780

Let's proceed to step 4:
When dividing 4129 by 780, we get 5 with a remainder of 229.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 3900 from 4129 and we're left with 229.
Bring next digit (0) of the dividend behind the 229 and repeat the process: 2290 / 780

Moving on to step 5:
If we divide 2290 by 780, we get 2 and a remainder of 730.
Put 2 as the next digit of the answer. 
Result so far: 52.0
If we subtract 1560 from 2290, we get 730.
Bring next digit (9) of the dividend behind the 730 and repeat the process: 7309 / 780

Moving on to step 6:
The number 780 fits into 7309 9 times, leaving a remainder of 289.
Write down 9 as next digit of the result. 
Result so far: 529.0
If we subtract 7020 from 7309, we get 289.
Fetch the next digit (0) from the dividend, attach it to 289 and continue: 2890 / 780

Moving on to step 7:
The number 780 fits into 2890 3 times, leaving a remainder of 550.
Write down 3 as next digit of the result. 
Result so far: 5293.0
If we take 2340 away from 2890, we end up with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Let's proceed to step 8:
If we divide 5500 by 780, we get 7 and a remainder of 40.
The next digit of our result is 7. 
Result so far: 5293.7
Subtracting 5460 from 5500 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.

Let's proceed to step 9:
400 divided by 780 is 0 with a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 5293.7
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 10:
780 goes into 4000 5 times with a remainder of 100.
Record the quotient 5 as the next digit in the result. 
Result so far: 5293.705
Deduct 3900 from 4000 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 11:
When dividing 1000 by 780, we get 1 with a remainder of 220.
The next digit of our result is 1. 
Result so far: 5293.7051
If we take 780 away from 1000, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 12:
The number 780 fits into 2200 2 times, leaving a remainder of 640.
The number 2 becomes the next digit in our result. 
Result so far: 5293.70512
If we take 1560 away from 2200, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 13:
If we divide 6400 by 780, we get 8 and a remainder of 160.
The next digit of our result is 8. 
Result so far: 5293.705128
If we subtract 6240 from 6400, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 14:
If we divide 1600 by 780, we get 2 and a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 5293.7051282
Subtracting 1560 from 1600 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.

On to step 15:
400 divided by 780 is 0 with a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 5293.7051282
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 5293.7051282 with a remainder of 4e-07.