We're dividing 15409663 by 755 
The aim is to understand the frequency of 755 in 15409663.

Advancing to step 1:
If we divide 1 by 755, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 755

On to step 2:
If we divide 15 by 755, we get 0 and a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 755

Let's proceed to step 3:
755 can be fit into 154 0 times, resulting in a remainder of 154.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 154, we end up with 154.
Include the next digit (0) from the dividend after 154, then repeat: 1540 / 755

Going ahead to step 4:
1540 divided by 755 is 2 with a remainder of 30.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 1510 from 1540 to get 30.
Append the next digit (9) from the dividend to 30 and continue with: 309 / 755

Going ahead to step 5:
When dividing 309 by 755, we get 0 with a remainder of 309.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtract 0 from 309 to get 309.
Take the next digit (6) from the dividend and append it to 309, then repeat: 3096 / 755

Going ahead to step 6:
The number 755 fits into 3096 4 times, leaving a remainder of 76.
Record the quotient 4 as the next digit in the result. 
Result so far: 204.0
Subtracting 3020 from 3096 leaves us with 76.
Append the next digit (6) from the dividend to 76 and continue with: 766 / 755

Advancing to step 7:
When dividing 766 by 755, we get 1 with a remainder of 11.
The next digit of our result is 1. 
Result so far: 2041.0
Deduct 755 from 766 and we're left with 11.
Bring next digit (3) of the dividend behind the 11 and repeat the process: 113 / 755

Going ahead to step 8:
When dividing 113 by 755, we get 0 with a remainder of 113.
Use 0 as the next digit of our solution. 
Result so far: 20410.0
Deduct 0 from 113 and we're left with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Moving on to step 9:
When dividing 1130 by 755, we get 1 with a remainder of 375.
Write down 1 as next digit of the result. 
Result so far: 20410.1
Subtract 755 from 1130 to get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Moving on to step 10:
3750 divided by 755 is 4 with a remainder of 730.
The number 4 becomes the next digit in our result. 
Result so far: 20410.14
Subtracting 3020 from 3750 leaves us with 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Let's proceed to step 11:
If we divide 7300 by 755, we get 9 and a remainder of 505.
Put 9 as the next digit of the answer. 
Result so far: 20410.149
Deduct 6795 from 7300 and we're left with 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

On to step 12:
5050 divided by 755 is 6 with a remainder of 520.
Put 6 as the next digit of the answer. 
Result so far: 20410.1496
If we take 4530 away from 5050, we end up with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Advancing to step 13:
5200 divided by 755 is 6 with a remainder of 670.
Write down 6 as next digit of the result. 
Result so far: 20410.14966
If we subtract 4530 from 5200, we get 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

The quotient of the division is 20410.14966, and the remainder is 0.00067.