We're dividing 129371 by 58 
The aim is to understand the frequency of 58 in 129371.

Going ahead to step 1:
If we divide 1 by 58, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 58

Going ahead to step 2:
58 can be fit into 12 0 times, resulting in a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 58

On to step 3:
The number 58 fits into 129 2 times, leaving a remainder of 13.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 116 from 129, we get 13.
Append the next digit (3) from the dividend to 13 and continue with: 133 / 58

Advancing to step 4:
58 can be fit into 133 2 times, resulting in a remainder of 17.
The next digit of our result is 2. 
Result so far: 22.0
If we take 116 away from 133, we end up with 17.
Append the next digit (7) from the dividend to 17 and continue with: 177 / 58

Let's proceed to step 5:
58 can be fit into 177 3 times, resulting in a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 223.0
The remainder is 3 after subtracting 174 from 177.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 58

Going ahead to step 6:
58 goes into 31 0 times with a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 2230.0
Deduct 0 from 31 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 7:
When dividing 310 by 58, we get 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 2230.5
Subtract 290 from 310 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
When dividing 200 by 58, we get 3 with a remainder of 26.
Record the quotient 3 as the next digit in the result. 
Result so far: 2230.53
If we subtract 174 from 200, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 9:
58 can be fit into 260 4 times, resulting in a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 2230.534
Subtract 232 from 260 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 10:
280 divided by 58 is 4 with a remainder of 48.
Use 4 as the next digit of our solution. 
Result so far: 2230.5344
Deduct 232 from 280 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.

The quotient of the division is 2230.5344, and the remainder is 0.00048.