We look at the division of 20451653 by 580 
The aim is to understand the frequency of 580 in 20451653.

Going ahead to step 1:
580 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 580

Going ahead to step 2:
The number 580 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Take the next digit (4) from the dividend and append it to 20, then repeat: 204 / 580

Let's proceed to step 3:
204 divided by 580 is 0 with a remainder of 204.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 204 and we're left with 204.
Take the next digit (5) from the dividend and append it to 204, then repeat: 2045 / 580

Advancing to step 4:
580 can be fit into 2045 3 times, resulting in a remainder of 305.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 1740 from 2045, we get 305.
Take the next digit (1) from the dividend and append it to 305, then repeat: 3051 / 580

On to step 5:
580 goes into 3051 5 times with a remainder of 151.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
Deduct 2900 from 3051 and we're left with 151.
Include the next digit (6) from the dividend after 151, then repeat: 1516 / 580

Let's proceed to step 6:
580 can be fit into 1516 2 times, resulting in a remainder of 356.
Use 2 as the next digit of our solution. 
Result so far: 352.0
If we take 1160 away from 1516, we end up with 356.
Bring next digit (5) of the dividend behind the 356 and repeat the process: 3565 / 580

Step 7:
580 can be fit into 3565 6 times, resulting in a remainder of 85.
Use 6 as the next digit of our solution. 
Result so far: 3526.0
If we take 3480 away from 3565, we end up with 85.
Grab the next digit (3) from the dividend, add it to 85, then carry on: 853 / 580

Step 8:
580 can be fit into 853 1 times, resulting in a remainder of 273.
The next digit of our result is 1. 
Result so far: 35261.0
Deduct 580 from 853 and we're left with 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

On to step 9:
If we divide 2730 by 580, we get 4 and a remainder of 410.
Write down 4 as next digit of the result. 
Result so far: 35261.4
If we subtract 2320 from 2730, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Step 10:
The number 580 fits into 4100 7 times, leaving a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 35261.47
Deduct 4060 from 4100 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 11:
When dividing 400 by 580, we get 0 with a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 35261.47
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 12:
4000 divided by 580 is 6 with a remainder of 520.
Use 6 as the next digit of our solution. 
Result so far: 35261.4706
If we take 3480 away from 4000, we end up with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Step 13:
580 can be fit into 5200 8 times, resulting in a remainder of 560.
Record the quotient 8 as the next digit in the result. 
Result so far: 35261.47068
If we take 4640 away from 5200, we end up with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 14:
5600 divided by 580 is 9 with a remainder of 380.
Put 9 as the next digit of the answer. 
Result so far: 35261.470689
The remainder is 380 after subtracting 5220 from 5600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 15:
580 goes into 3800 6 times with a remainder of 320.
Record the quotient 6 as the next digit in the result. 
Result so far: 35261.4706896
If we subtract 3480 from 3800, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 16:
580 goes into 3200 5 times with a remainder of 300.
The number 5 becomes the next digit in our result. 
Result so far: 35261.47068965
The remainder is 300 after subtracting 2900 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final outcome is 35261.47068965, with a leftover of 3e-07.