45804566 ÷ 801 
The aim is to understand the frequency of 801 in 45804566.

Advancing to step 1:
4 divided by 801 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 801

Step 2:
If we divide 45 by 801, we get 0 and a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Grab the next digit (8) from the dividend, add it to 45, then carry on: 458 / 801

Moving on to step 3:
801 goes into 458 0 times with a remainder of 458.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 458 after subtracting 0 from 458.
Grab the next digit (0) from the dividend, add it to 458, then carry on: 4580 / 801

Going ahead to step 4:
801 goes into 4580 5 times with a remainder of 575.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 4005 away from 4580, we end up with 575.
Append the next digit (4) from the dividend to 575 and continue with: 5754 / 801

On to step 5:
When dividing 5754 by 801, we get 7 with a remainder of 147.
Record the quotient 7 as the next digit in the result. 
Result so far: 57.0
The remainder is 147 after subtracting 5607 from 5754.
Bring next digit (5) of the dividend behind the 147 and repeat the process: 1475 / 801

Advancing to step 6:
1475 divided by 801 is 1 with a remainder of 674.
Record the quotient 1 as the next digit in the result. 
Result so far: 571.0
If we subtract 801 from 1475, we get 674.
Take the next digit (6) from the dividend and append it to 674, then repeat: 6746 / 801

Going ahead to step 7:
6746 divided by 801 is 8 with a remainder of 338.
The next digit of our result is 8. 
Result so far: 5718.0
If we take 6408 away from 6746, we end up with 338.
Take the next digit (6) from the dividend and append it to 338, then repeat: 3386 / 801

Advancing to step 8:
3386 divided by 801 is 4 with a remainder of 182.
The number 4 becomes the next digit in our result. 
Result so far: 57184.0
Subtract 3204 from 3386 to get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Step 9:
1820 divided by 801 is 2 with a remainder of 218.
Record the quotient 2 as the next digit in the result. 
Result so far: 57184.2
If we subtract 1602 from 1820, we get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Going ahead to step 10:
801 goes into 2180 2 times with a remainder of 578.
The next digit of our result is 2. 
Result so far: 57184.22
The remainder is 578 after subtracting 1602 from 2180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

After the division, we end up with 57184.22 and a remainder of 0.578.