Let's divide 5801355 by 780
We want to figure out the number of times 5801355 can be divided by 780.

On to step 1:
780 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 780

Advancing to step 2:
When dividing 58 by 780, we get 0 with a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 58 and we're left with 58.
Append the next digit (0) from the dividend to 58 and continue with: 580 / 780

Going ahead to step 3:
The number 780 fits into 580 0 times, leaving a remainder of 580.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 580, we get 580.
Bring next digit (1) of the dividend behind the 580 and repeat the process: 5801 / 780

On to step 4:
When dividing 5801 by 780, we get 7 with a remainder of 341.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 5460 from 5801 to get 341.
Bring next digit (3) of the dividend behind the 341 and repeat the process: 3413 / 780

Let's proceed to step 5:
3413 divided by 780 is 4 with a remainder of 293.
The number 4 becomes the next digit in our result. 
Result so far: 74.0
Deduct 3120 from 3413 and we're left with 293.
Append the next digit (5) from the dividend to 293 and continue with: 2935 / 780

Going ahead to step 6:
If we divide 2935 by 780, we get 3 and a remainder of 595.
Use 3 as the next digit of our solution. 
Result so far: 743.0
If we subtract 2340 from 2935, we get 595.
Fetch the next digit (5) from the dividend, attach it to 595 and continue: 5955 / 780

Going ahead to step 7:
780 goes into 5955 7 times with a remainder of 495.
Use 7 as the next digit of our solution. 
Result so far: 7437.0
Deduct 5460 from 5955 and we're left with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Advancing to step 8:
780 goes into 4950 6 times with a remainder of 270.
Use 6 as the next digit of our solution. 
Result so far: 7437.6
Subtract 4680 from 4950 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 9:
780 goes into 2700 3 times with a remainder of 360.
Use 3 as the next digit of our solution. 
Result so far: 7437.63
The remainder is 360 after subtracting 2340 from 2700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 10:
The number 780 fits into 3600 4 times, leaving a remainder of 480.
Use 4 as the next digit of our solution. 
Result so far: 7437.634
Subtract 3120 from 3600 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 11:
The number 780 fits into 4800 6 times, leaving a remainder of 120.
The next digit of our result is 6. 
Result so far: 7437.6346
Subtract 4680 from 4800 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 12:
1200 divided by 780 is 1 with a remainder of 420.
Use 1 as the next digit of our solution. 
Result so far: 7437.63461
Deduct 780 from 1200 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Advancing to step 13:
780 can be fit into 4200 5 times, resulting in a remainder of 300.
Put 5 as the next digit of the answer. 
Result so far: 7437.634615
The remainder is 300 after subtracting 3900 from 4200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 14:
If we divide 3000 by 780, we get 3 and a remainder of 660.
Use 3 as the next digit of our solution. 
Result so far: 7437.6346153
If we take 2340 away from 3000, we end up with 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Let's proceed to step 15:
If we divide 6600 by 780, we get 8 and a remainder of 360.
Write down 8 as next digit of the result. 
Result so far: 7437.63461538
Subtracting 6240 from 6600 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Our division results in 7437.63461538 with a remaining 3.6e-07.