Let's divide 561439 by 58
The aim is to understand the frequency of 58 in 561439.

On to step 1:
58 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 58

Step 2:
When dividing 56 by 58, we get 0 with a remainder of 56.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 56 and we're left with 56.
Take the next digit (1) from the dividend and append it to 56, then repeat: 561 / 58

On to step 3:
If we divide 561 by 58, we get 9 and a remainder of 39.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 522 from 561, we get 39.
Bring next digit (4) of the dividend behind the 39 and repeat the process: 394 / 58

Step 4:
58 goes into 394 6 times with a remainder of 46.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
If we subtract 348 from 394, we get 46.
Grab the next digit (3) from the dividend, add it to 46, then carry on: 463 / 58

Let's proceed to step 5:
58 can be fit into 463 7 times, resulting in a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 967.0
If we take 406 away from 463, we end up with 57.
Take the next digit (9) from the dividend and append it to 57, then repeat: 579 / 58

Moving on to step 6:
If we divide 579 by 58, we get 9 and a remainder of 57.
Record the quotient 9 as the next digit in the result. 
Result so far: 9679.0
The remainder is 57 after subtracting 522 from 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 7:
58 can be fit into 570 9 times, resulting in a remainder of 48.
Use 9 as the next digit of our solution. 
Result so far: 9679.9
Deduct 522 from 570 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 8:
If we divide 480 by 58, we get 8 and a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 9679.98
Subtract 464 from 480 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
When dividing 160 by 58, we get 2 with a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 9679.982
The remainder is 44 after subtracting 116 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 10:
440 divided by 58 is 7 with a remainder of 34.
Write down 7 as next digit of the result. 
Result so far: 9679.9827
Deduct 406 from 440 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 11:
If we divide 340 by 58, we get 5 and a remainder of 50.
The next digit of our result is 5. 
Result so far: 9679.98275
Subtract 290 from 340 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 12:
When dividing 500 by 58, we get 8 with a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 9679.982758
Deduct 464 from 500 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 13:
360 divided by 58 is 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 9679.9827586
Subtracting 348 from 360 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 14:
58 goes into 120 2 times with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 9679.98275862
Subtract 116 from 120 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 9679.98275862, with a leftover of 4e-09.