57546421 divided by 580 
The aim is to understand the frequency of 580 in 57546421.

Let's proceed to step 1:
When dividing 5 by 580, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 580

Step 2:
580 goes into 57 0 times with a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 57 leaves us with 57.
Take the next digit (5) from the dividend and append it to 57, then repeat: 575 / 580

Going ahead to step 3:
580 can be fit into 575 0 times, resulting in a remainder of 575.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 575 and we're left with 575.
Include the next digit (4) from the dividend after 575, then repeat: 5754 / 580

On to step 4:
If we divide 5754 by 580, we get 9 and a remainder of 534.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 5220 from 5754 to get 534.
Include the next digit (6) from the dividend after 534, then repeat: 5346 / 580

Let's proceed to step 5:
580 can be fit into 5346 9 times, resulting in a remainder of 126.
Write down 9 as next digit of the result. 
Result so far: 99.0
If we subtract 5220 from 5346, we get 126.
Grab the next digit (4) from the dividend, add it to 126, then carry on: 1264 / 580

On to step 6:
If we divide 1264 by 580, we get 2 and a remainder of 104.
Put 2 as the next digit of the answer. 
Result so far: 992.0
The remainder is 104 after subtracting 1160 from 1264.
Take the next digit (2) from the dividend and append it to 104, then repeat: 1042 / 580

On to step 7:
580 goes into 1042 1 times with a remainder of 462.
Record the quotient 1 as the next digit in the result. 
Result so far: 9921.0
If we take 580 away from 1042, we end up with 462.
Fetch the next digit (1) from the dividend, attach it to 462 and continue: 4621 / 580

Going ahead to step 8:
580 can be fit into 4621 7 times, resulting in a remainder of 561.
The number 7 becomes the next digit in our result. 
Result so far: 99217.0
If we subtract 4060 from 4621, we get 561.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5610, and continue the process.

Advancing to step 9:
When dividing 5610 by 580, we get 9 with a remainder of 390.
The number 9 becomes the next digit in our result. 
Result so far: 99217.9
The remainder is 390 after subtracting 5220 from 5610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Step 10:
If we divide 3900 by 580, we get 6 and a remainder of 420.
Use 6 as the next digit of our solution. 
Result so far: 99217.96
If we take 3480 away from 3900, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

On to step 11:
When dividing 4200 by 580, we get 7 with a remainder of 140.
Record the quotient 7 as the next digit in the result. 
Result so far: 99217.967
Subtracting 4060 from 4200 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 12:
If we divide 1400 by 580, we get 2 and a remainder of 240.
Use 2 as the next digit of our solution. 
Result so far: 99217.9672
Subtracting 1160 from 1400 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 13:
2400 divided by 580 is 4 with a remainder of 80.
The number 4 becomes the next digit in our result. 
Result so far: 99217.96724
If we subtract 2320 from 2400, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 14:
When dividing 800 by 580, we get 1 with a remainder of 220.
Use 1 as the next digit of our solution. 
Result so far: 99217.967241
Subtracting 580 from 800 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 15:
If we divide 2200 by 580, we get 3 and a remainder of 460.
Put 3 as the next digit of the answer. 
Result so far: 99217.9672413
If we subtract 1740 from 2200, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Moving on to step 16:
When dividing 4600 by 580, we get 7 with a remainder of 540.
Use 7 as the next digit of our solution. 
Result so far: 99217.96724137
Subtract 4060 from 4600 to get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

In conclusion, the division gives 99217.96724137 with a balance of 5.4e-07.