2901253 ÷ 780 
Our goal is to divide 2901253 by 780.

Let's proceed to step 1:
When dividing 2 by 780, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 780

Advancing to step 2:
780 can be fit into 29 0 times, resulting in a remainder of 29.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 29 to get 29.
Grab the next digit (0) from the dividend, add it to 29, then carry on: 290 / 780

Step 3:
780 can be fit into 290 0 times, resulting in a remainder of 290.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 290 leaves us with 290.
Include the next digit (1) from the dividend after 290, then repeat: 2901 / 780

Step 4:
2901 divided by 780 is 3 with a remainder of 561.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 561 after subtracting 2340 from 2901.
Bring next digit (2) of the dividend behind the 561 and repeat the process: 5612 / 780

Step 5:
The number 780 fits into 5612 7 times, leaving a remainder of 152.
The next digit of our result is 7. 
Result so far: 37.0
Subtract 5460 from 5612 to get 152.
Grab the next digit (5) from the dividend, add it to 152, then carry on: 1525 / 780

Let's proceed to step 6:
The number 780 fits into 1525 1 times, leaving a remainder of 745.
Use 1 as the next digit of our solution. 
Result so far: 371.0
If we take 780 away from 1525, we end up with 745.
Fetch the next digit (3) from the dividend, attach it to 745 and continue: 7453 / 780

Advancing to step 7:
When dividing 7453 by 780, we get 9 with a remainder of 433.
The number 9 becomes the next digit in our result. 
Result so far: 3719.0
Deduct 7020 from 7453 and we're left with 433.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4330, and continue the process.

Step 8:
When dividing 4330 by 780, we get 5 with a remainder of 430.
The number 5 becomes the next digit in our result. 
Result so far: 3719.5
Subtracting 3900 from 4330 leaves us with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

On to step 9:
780 goes into 4300 5 times with a remainder of 400.
Record the quotient 5 as the next digit in the result. 
Result so far: 3719.55
If we subtract 3900 from 4300, 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 3719.55 with a remainder of 0.4.