We divide 86830391 by 780
Let's see how many times 780 fits into 86830391.

On to step 1:
If we divide 8 by 780, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 780

Advancing to step 2:
The number 780 fits into 86 0 times, leaving a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Fetch the next digit (8) from the dividend, attach it to 86 and continue: 868 / 780

Advancing to step 3:
780 can be fit into 868 1 times, resulting in a remainder of 88.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 780 from 868, we get 88.
Append the next digit (3) from the dividend to 88 and continue with: 883 / 780

On to step 4:
If we divide 883 by 780, we get 1 and a remainder of 103.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 103 after subtracting 780 from 883.
Fetch the next digit (0) from the dividend, attach it to 103 and continue: 1030 / 780

Step 5:
When dividing 1030 by 780, we get 1 with a remainder of 250.
The next digit of our result is 1. 
Result so far: 111.0
If we take 780 away from 1030, we end up with 250.
Take the next digit (3) from the dividend and append it to 250, then repeat: 2503 / 780

Advancing to step 6:
780 goes into 2503 3 times with a remainder of 163.
Write down 3 as next digit of the result. 
Result so far: 1113.0
Deduct 2340 from 2503 and we're left with 163.
Take the next digit (9) from the dividend and append it to 163, then repeat: 1639 / 780

Step 7:
If we divide 1639 by 780, we get 2 and a remainder of 79.
Write down 2 as next digit of the result. 
Result so far: 11132.0
Subtracting 1560 from 1639 leaves us with 79.
Fetch the next digit (1) from the dividend, attach it to 79 and continue: 791 / 780

Moving on to step 8:
780 goes into 791 1 times with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 111321.0
Deduct 780 from 791 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 9:
780 can be fit into 110 0 times, resulting in a remainder of 110.
The next digit of our result is 0. 
Result so far: 111321.0
Subtract 0 from 110 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Advancing to step 10:
780 goes into 1100 1 times with a remainder of 320.
Record the quotient 1 as the next digit in the result. 
Result so far: 111321.01
Subtracting 780 from 1100 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 11:
3200 divided by 780 is 4 with a remainder of 80.
Write down 4 as next digit of the result. 
Result so far: 111321.014
Deduct 3120 from 3200 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 12:
800 divided by 780 is 1 with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 111321.0141
Subtract 780 from 800 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
780 goes into 200 0 times with a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 111321.0141
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 14:
When dividing 2000 by 780, we get 2 with a remainder of 440.
The number 2 becomes the next digit in our result. 
Result so far: 111321.014102
Subtracting 1560 from 2000 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 15:
780 goes into 4400 5 times with a remainder of 500.
Record the quotient 5 as the next digit in the result. 
Result so far: 111321.0141025
Subtract 3900 from 4400 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 16:
If we divide 5000 by 780, we get 6 and a remainder of 320.
Use 6 as the next digit of our solution. 
Result so far: 111321.01410256
The remainder is 320 after subtracting 4680 from 5000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The quotient of the division is 111321.01410256, and the remainder is 3.2e-07.