75952945 ÷ 821 
The aim is to understand the frequency of 821 in 75952945.

On to step 1:
The number 821 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 821

Going ahead to step 2:
821 can be fit into 75 0 times, resulting in a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 75, we get 75.
Fetch the next digit (9) from the dividend, attach it to 75 and continue: 759 / 821

Advancing to step 3:
821 can be fit into 759 0 times, resulting in a remainder of 759.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 759 to get 759.
Take the next digit (5) from the dividend and append it to 759, then repeat: 7595 / 821

Let's proceed to step 4:
If we divide 7595 by 821, we get 9 and a remainder of 206.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Deduct 7389 from 7595 and we're left with 206.
Include the next digit (2) from the dividend after 206, then repeat: 2062 / 821

Let's proceed to step 5:
If we divide 2062 by 821, we get 2 and a remainder of 420.
The next digit of our result is 2. 
Result so far: 92.0
Subtracting 1642 from 2062 leaves us with 420.
Append the next digit (9) from the dividend to 420 and continue with: 4209 / 821

Advancing to step 6:
The number 821 fits into 4209 5 times, leaving a remainder of 104.
Put 5 as the next digit of the answer. 
Result so far: 925.0
The remainder is 104 after subtracting 4105 from 4209.
Fetch the next digit (4) from the dividend, attach it to 104 and continue: 1044 / 821

Advancing to step 7:
If we divide 1044 by 821, we get 1 and a remainder of 223.
Write down 1 as next digit of the result. 
Result so far: 9251.0
If we take 821 away from 1044, we end up with 223.
Fetch the next digit (5) from the dividend, attach it to 223 and continue: 2235 / 821

On to step 8:
The number 821 fits into 2235 2 times, leaving a remainder of 593.
The next digit of our result is 2. 
Result so far: 92512.0
If we take 1642 away from 2235, we end up with 593.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5930, and continue the process.

Let's proceed to step 9:
The number 821 fits into 5930 7 times, leaving a remainder of 183.
Use 7 as the next digit of our solution. 
Result so far: 92512.7
If we take 5747 away from 5930, we end up with 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Let's proceed to step 10:
821 goes into 1830 2 times with a remainder of 188.
Put 2 as the next digit of the answer. 
Result so far: 92512.72
The remainder is 188 after subtracting 1642 from 1830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

On to step 11:
821 goes into 1880 2 times with a remainder of 238.
Use 2 as the next digit of our solution. 
Result so far: 92512.722
Subtract 1642 from 1880 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

The final result is 92512.722 with a remainder of 0.0238.