We look at the division of 25231021 by 786 
We want to figure out the number of times 25231021 can be divided by 786.

On to step 1:
If we divide 2 by 786, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 786

Let's proceed to step 2:
786 can be fit into 25 0 times, resulting in a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Fetch the next digit (2) from the dividend, attach it to 25 and continue: 252 / 786

Going ahead to step 3:
252 divided by 786 is 0 with a remainder of 252.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 252 and we're left with 252.
Include the next digit (3) from the dividend after 252, then repeat: 2523 / 786

Moving on to step 4:
786 goes into 2523 3 times with a remainder of 165.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 2358 from 2523 to get 165.
Append the next digit (1) from the dividend to 165 and continue with: 1651 / 786

Let's proceed to step 5:
The number 786 fits into 1651 2 times, leaving a remainder of 79.
Write down 2 as next digit of the result. 
Result so far: 32.0
Deduct 1572 from 1651 and we're left with 79.
Fetch the next digit (0) from the dividend, attach it to 79 and continue: 790 / 786

Advancing to step 6:
786 can be fit into 790 1 times, resulting in a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 321.0
If we take 786 away from 790, we end up with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 786

Step 7:
If we divide 42 by 786, we get 0 and a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 3210.0
Subtracting 0 from 42 leaves us with 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 786

Step 8:
786 goes into 421 0 times with a remainder of 421.
Write down 0 as next digit of the result. 
Result so far: 32100.0
Deduct 0 from 421 and we're left with 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

Step 9:
The number 786 fits into 4210 5 times, leaving a remainder of 280.
Use 5 as the next digit of our solution. 
Result so far: 32100.5
The remainder is 280 after subtracting 3930 from 4210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 10:
786 goes into 2800 3 times with a remainder of 442.
Record the quotient 3 as the next digit in the result. 
Result so far: 32100.53
The remainder is 442 after subtracting 2358 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Going ahead to step 11:
4420 divided by 786 is 5 with a remainder of 490.
Use 5 as the next digit of our solution. 
Result so far: 32100.535
If we subtract 3930 from 4420, we get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

On to step 12:
4900 divided by 786 is 6 with a remainder of 184.
The number 6 becomes the next digit in our result. 
Result so far: 32100.5356
Subtracting 4716 from 4900 leaves us with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Let's proceed to step 13:
786 can be fit into 1840 2 times, resulting in a remainder of 268.
Put 2 as the next digit of the answer. 
Result so far: 32100.53562
Deduct 1572 from 1840 and we're left with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Going ahead to step 14:
The number 786 fits into 2680 3 times, leaving a remainder of 322.
Record the quotient 3 as the next digit in the result. 
Result so far: 32100.535623
If we subtract 2358 from 2680, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Advancing to step 15:
786 goes into 3220 4 times with a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 32100.5356234
Deduct 3144 from 3220 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 16:
When dividing 760 by 786, we get 0 with a remainder of 760.
Write down 0 as next digit of the result. 
Result so far: 32100.5356234
If we subtract 0 from 760, we get 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

The final outcome is 32100.5356234, with a leftover of 7.6e-07.