Let's divide 25750659 by 763
The aim is to understand the frequency of 763 in 25750659.

Advancing to step 1:
763 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 763

Advancing to step 2:
25 divided by 763 is 0 with a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Grab the next digit (7) from the dividend, add it to 25, then carry on: 257 / 763

Step 3:
When dividing 257 by 763, we get 0 with a remainder of 257.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 257 to get 257.
Bring next digit (5) of the dividend behind the 257 and repeat the process: 2575 / 763

Moving on to step 4:
763 goes into 2575 3 times with a remainder of 286.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 2289 from 2575 and we're left with 286.
Append the next digit (0) from the dividend to 286 and continue with: 2860 / 763

Moving on to step 5:
The number 763 fits into 2860 3 times, leaving a remainder of 571.
Put 3 as the next digit of the answer. 
Result so far: 33.0
Deduct 2289 from 2860 and we're left with 571.
Bring next digit (6) of the dividend behind the 571 and repeat the process: 5716 / 763

Advancing to step 6:
The number 763 fits into 5716 7 times, leaving a remainder of 375.
The next digit of our result is 7. 
Result so far: 337.0
If we subtract 5341 from 5716, we get 375.
Take the next digit (5) from the dividend and append it to 375, then repeat: 3755 / 763

Step 7:
3755 divided by 763 is 4 with a remainder of 703.
Put 4 as the next digit of the answer. 
Result so far: 3374.0
Subtracting 3052 from 3755 leaves us with 703.
Take the next digit (9) from the dividend and append it to 703, then repeat: 7039 / 763

On to step 8:
The number 763 fits into 7039 9 times, leaving a remainder of 172.
Write down 9 as next digit of the result. 
Result so far: 33749.0
If we subtract 6867 from 7039, we get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Going ahead to step 9:
The number 763 fits into 1720 2 times, leaving a remainder of 194.
Put 2 as the next digit of the answer. 
Result so far: 33749.2
The remainder is 194 after subtracting 1526 from 1720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Moving on to step 10:
The number 763 fits into 1940 2 times, leaving a remainder of 414.
Record the quotient 2 as the next digit in the result. 
Result so far: 33749.22
If we take 1526 away from 1940, we end up with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

The final outcome is 33749.22, with a leftover of 0.414.