399590 ÷ 59 
The aim is to understand the frequency of 59 in 399590.

Going ahead to step 1:
3 divided by 59 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 59

Let's proceed to step 2:
39 divided by 59 is 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Bring next digit (9) of the dividend behind the 39 and repeat the process: 399 / 59

Moving on to step 3:
If we divide 399 by 59, we get 6 and a remainder of 45.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 354 from 399, we get 45.
Fetch the next digit (5) from the dividend, attach it to 45 and continue: 455 / 59

Moving on to step 4:
59 can be fit into 455 7 times, resulting in a remainder of 42.
The next digit of our result is 7. 
Result so far: 67.0
Deduct 413 from 455 and we're left with 42.
Include the next digit (9) from the dividend after 42, then repeat: 429 / 59

Step 5:
59 goes into 429 7 times with a remainder of 16.
The next digit of our result is 7. 
Result so far: 677.0
Deduct 413 from 429 and we're left with 16.
Fetch the next digit (0) from the dividend, attach it to 16 and continue: 160 / 59

Let's proceed to step 6:
If we divide 160 by 59, we get 2 and a remainder of 42.
The next digit of our result is 2. 
Result so far: 6772.0
Subtract 118 from 160 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 7:
59 goes into 420 7 times with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 6772.7
Deduct 413 from 420 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 8:
59 can be fit into 70 1 times, resulting in a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 6772.71
Deduct 59 from 70 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
59 goes into 110 1 times with a remainder of 51.
Record the quotient 1 as the next digit in the result. 
Result so far: 6772.711
If we take 59 away from 110, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final result is 6772.711 with a remainder of 0.0051.