15724395 divided by 805 
The aim is to understand the frequency of 805 in 15724395.

Moving on to step 1:
The number 805 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 805

Let's proceed to step 2:
If we divide 15 by 805, we get 0 and a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Take the next digit (7) from the dividend and append it to 15, then repeat: 157 / 805

On to step 3:
157 divided by 805 is 0 with a remainder of 157.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 157 and we're left with 157.
Include the next digit (2) from the dividend after 157, then repeat: 1572 / 805

Advancing to step 4:
1572 divided by 805 is 1 with a remainder of 767.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 805 from 1572 and we're left with 767.
Grab the next digit (4) from the dividend, add it to 767, then carry on: 7674 / 805

Moving on to step 5:
The number 805 fits into 7674 9 times, leaving a remainder of 429.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtracting 7245 from 7674 leaves us with 429.
Bring next digit (3) of the dividend behind the 429 and repeat the process: 4293 / 805

On to step 6:
805 goes into 4293 5 times with a remainder of 268.
Record the quotient 5 as the next digit in the result. 
Result so far: 195.0
Subtract 4025 from 4293 to get 268.
Grab the next digit (9) from the dividend, add it to 268, then carry on: 2689 / 805

Step 7:
805 goes into 2689 3 times with a remainder of 274.
Use 3 as the next digit of our solution. 
Result so far: 1953.0
If we take 2415 away from 2689, we end up with 274.
Bring next digit (5) of the dividend behind the 274 and repeat the process: 2745 / 805

Let's proceed to step 8:
The number 805 fits into 2745 3 times, leaving a remainder of 330.
Put 3 as the next digit of the answer. 
Result so far: 19533.0
Subtracting 2415 from 2745 leaves us with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 9:
The number 805 fits into 3300 4 times, leaving a remainder of 80.
Write down 4 as next digit of the result. 
Result so far: 19533.4
The remainder is 80 after subtracting 3220 from 3300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 10:
The number 805 fits into 800 0 times, leaving a remainder of 800.
Write down 0 as next digit of the result. 
Result so far: 19533.4
Subtract 0 from 800 to get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

On to step 11:
When dividing 8000 by 805, we get 9 with a remainder of 755.
Put 9 as the next digit of the answer. 
Result so far: 19533.409
If we subtract 7245 from 8000, we get 755.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7550, and continue the process.

Advancing to step 12:
If we divide 7550 by 805, we get 9 and a remainder of 305.
Use 9 as the next digit of our solution. 
Result so far: 19533.4099
Subtract 7245 from 7550 to get 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

The quotient of the division is 19533.4099, and the remainder is 0.00305.