58572611 ÷ 819 
The aim is to understand the frequency of 819 in 58572611.

On to step 1:
The number 819 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 819

Step 2:
If we divide 58 by 819, we get 0 and a remainder of 58.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Grab the next digit (5) from the dividend, add it to 58, then carry on: 585 / 819

On to step 3:
585 divided by 819 is 0 with a remainder of 585.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 585, we end up with 585.
Bring next digit (7) of the dividend behind the 585 and repeat the process: 5857 / 819

Step 4:
When dividing 5857 by 819, we get 7 with a remainder of 124.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 5733 away from 5857, we end up with 124.
Bring next digit (2) of the dividend behind the 124 and repeat the process: 1242 / 819

Advancing to step 5:
The number 819 fits into 1242 1 times, leaving a remainder of 423.
Put 1 as the next digit of the answer. 
Result so far: 71.0
If we take 819 away from 1242, we end up with 423.
Fetch the next digit (6) from the dividend, attach it to 423 and continue: 4236 / 819

Let's proceed to step 6:
If we divide 4236 by 819, we get 5 and a remainder of 141.
The next digit of our result is 5. 
Result so far: 715.0
Subtracting 4095 from 4236 leaves us with 141.
Bring next digit (1) of the dividend behind the 141 and repeat the process: 1411 / 819

Advancing to step 7:
819 can be fit into 1411 1 times, resulting in a remainder of 592.
Write down 1 as next digit of the result. 
Result so far: 7151.0
If we subtract 819 from 1411, we get 592.
Bring next digit (1) of the dividend behind the 592 and repeat the process: 5921 / 819

Advancing to step 8:
5921 divided by 819 is 7 with a remainder of 188.
Write down 7 as next digit of the result. 
Result so far: 71517.0
If we take 5733 away from 5921, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Let's proceed to step 9:
819 goes into 1880 2 times with a remainder of 242.
Write down 2 as next digit of the result. 
Result so far: 71517.2
The remainder is 242 after subtracting 1638 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Step 10:
819 can be fit into 2420 2 times, resulting in a remainder of 782.
Put 2 as the next digit of the answer. 
Result so far: 71517.22
The remainder is 782 after subtracting 1638 from 2420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7820, and continue the process.

The final result is 71517.22 with a remainder of 0.782.