We're dividing 890421 by 58 
The aim is to understand the frequency of 58 in 890421.

Let's proceed to step 1:
The number 58 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 58

Step 2:
58 can be fit into 89 1 times, resulting in a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 58 from 89 leaves us with 31.
Append the next digit (0) from the dividend to 31 and continue with: 310 / 58

On to step 3:
310 divided by 58 is 5 with a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Deduct 290 from 310 and we're left with 20.
Grab the next digit (4) from the dividend, add it to 20, then carry on: 204 / 58

Let's proceed to step 4:
58 can be fit into 204 3 times, resulting in a remainder of 30.
The number 3 becomes the next digit in our result. 
Result so far: 153.0
Subtracting 174 from 204 leaves us with 30.
Grab the next digit (2) from the dividend, add it to 30, then carry on: 302 / 58

On to step 5:
If we divide 302 by 58, we get 5 and a remainder of 12.
The number 5 becomes the next digit in our result. 
Result so far: 1535.0
Subtract 290 from 302 to get 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 58

Advancing to step 6:
If we divide 121 by 58, we get 2 and a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 15352.0
Deduct 116 from 121 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
58 goes into 50 0 times with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 15352.0
If we subtract 0 from 50, we 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.

On to step 8:
58 goes into 500 8 times with a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 15352.08
Subtracting 464 from 500 leaves us 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.

Going ahead to step 9:
58 goes into 360 6 times with a remainder of 12.
The next digit of our result is 6. 
Result so far: 15352.086
The remainder is 12 after subtracting 348 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
When dividing 120 by 58, we get 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 15352.0862
Subtracting 116 from 120 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 11:
40 divided by 58 is 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 15352.0862
Subtract 0 from 40 to get 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 12:
When dividing 400 by 58, we get 6 with a remainder of 52.
Use 6 as the next digit of our solution. 
Result so far: 15352.086206
If we take 348 away from 400, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 13:
58 goes into 520 8 times with a remainder of 56.
The next digit of our result is 8. 
Result so far: 15352.0862068
If we subtract 464 from 520, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 14:
58 can be fit into 560 9 times, resulting in a remainder of 38.
The next digit of our result is 9. 
Result so far: 15352.08620689
Subtract 522 from 560 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final outcome is 15352.08620689, with a leftover of 3.8e-08.