We're dividing 210598 by 69 
The aim is to understand the frequency of 69 in 210598.

Let's proceed to step 1:
If we divide 2 by 69, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 69

On to step 2:
If we divide 21 by 69, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 69

On to step 3:
If we divide 210 by 69, we get 3 and a remainder of 3.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 207 from 210 and we're left with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 69

On to step 4:
If we divide 35 by 69, we get 0 and a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtract 0 from 35 to get 35.
Include the next digit (9) from the dividend after 35, then repeat: 359 / 69

Going ahead to step 5:
69 can be fit into 359 5 times, resulting in a remainder of 14.
Record the quotient 5 as the next digit in the result. 
Result so far: 305.0
Subtract 345 from 359 to get 14.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 69

Moving on to step 6:
148 divided by 69 is 2 with a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 3052.0
Subtract 138 from 148 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 7:
The number 69 fits into 100 1 times, leaving a remainder of 31.
The number 1 becomes the next digit in our result. 
Result so far: 3052.1
Subtracting 69 from 100 leaves us 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.

Let's proceed to step 8:
The number 69 fits into 310 4 times, leaving a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 3052.14
If we take 276 away from 310, we end up 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.

On to step 9:
If we divide 340 by 69, we get 4 and a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 3052.144
Deduct 276 from 340 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The quotient of the division is 3052.144, and the remainder is 0.0064.