81721 divided by 59 
The aim is to understand the frequency of 59 in 81721.

Advancing to step 1:
When dividing 8 by 59, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 59

Step 2:
The number 59 fits into 81 1 times, leaving a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 59 from 81 and we're left with 22.
Append the next digit (7) from the dividend to 22 and continue with: 227 / 59

Let's proceed to step 3:
59 can be fit into 227 3 times, resulting in a remainder of 50.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 177 away from 227, we end up with 50.
Grab the next digit (2) from the dividend, add it to 50, then carry on: 502 / 59

Step 4:
502 divided by 59 is 8 with a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 138.0
Subtract 472 from 502 to get 30.
Bring next digit (1) of the dividend behind the 30 and repeat the process: 301 / 59

On to step 5:
59 goes into 301 5 times with a remainder of 6.
Put 5 as the next digit of the answer. 
Result so far: 1385.0
Deduct 295 from 301 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 6:
59 goes into 60 1 times with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1385.1
Subtracting 59 from 60 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
If we divide 10 by 59, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 1385.1
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
59 can be fit into 100 1 times, resulting in a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 1385.101
Subtract 59 from 100 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 9:
410 divided by 59 is 6 with a remainder of 56.
Record the quotient 6 as the next digit in the result. 
Result so far: 1385.1016
The remainder is 56 after subtracting 354 from 410.
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 10:
59 goes into 560 9 times with a remainder of 29.
Record the quotient 9 as the next digit in the result. 
Result so far: 1385.10169
If we subtract 531 from 560, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 11:
If we divide 290 by 59, we get 4 and a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 1385.101694
If we take 236 away from 290, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 12:
If we divide 540 by 59, we get 9 and a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 1385.1016949
If we subtract 531 from 540, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 13:
59 goes into 90 1 times with a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 1385.10169491
Deduct 59 from 90 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.

The final outcome is 1385.10169491, with a leftover of 3.1e-08.