We look at the division of 602002 by 61 
The aim is to understand the frequency of 61 in 602002.

Let's proceed to step 1:
When dividing 6 by 61, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 61

On to step 2:
When dividing 60 by 61, we get 0 with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 60, we get 60.
Append the next digit (2) from the dividend to 60 and continue with: 602 / 61

Let's proceed to step 3:
61 goes into 602 9 times with a remainder of 53.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 549 from 602, we get 53.
Bring next digit (0) of the dividend behind the 53 and repeat the process: 530 / 61

On to step 4:
When dividing 530 by 61, we get 8 with a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 98.0
Deduct 488 from 530 and we're left with 42.
Take the next digit (0) from the dividend and append it to 42, then repeat: 420 / 61

Going ahead to step 5:
61 can be fit into 420 6 times, resulting in a remainder of 54.
The number 6 becomes the next digit in our result. 
Result so far: 986.0
If we take 366 away from 420, we end up with 54.
Bring next digit (2) of the dividend behind the 54 and repeat the process: 542 / 61

On to step 6:
If we divide 542 by 61, we get 8 and a remainder of 54.
The number 8 becomes the next digit in our result. 
Result so far: 9868.0
If we take 488 away from 542, 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.

Advancing to step 7:
61 can be fit into 540 8 times, resulting in a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 9868.8
If we subtract 488 from 540, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 8:
61 can be fit into 520 8 times, resulting in a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 9868.88
If we subtract 488 from 520, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 9868.88 and a remainder of 0.032.