We look at the division of 98002021 by 942 
The aim is to understand the frequency of 942 in 98002021.

Step 1:
The number 942 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 942

Moving on to step 2:
If we divide 98 by 942, we get 0 and a remainder of 98.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 98 and we're left with 98.
Bring next digit (0) of the dividend behind the 98 and repeat the process: 980 / 942

Going ahead to step 3:
942 can be fit into 980 1 times, resulting in a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 942 from 980 to get 38.
Include the next digit (0) from the dividend after 38, then repeat: 380 / 942

Advancing to step 4:
942 goes into 380 0 times with a remainder of 380.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 380 leaves us with 380.
Fetch the next digit (2) from the dividend, attach it to 380 and continue: 3802 / 942

Going ahead to step 5:
When dividing 3802 by 942, we get 4 with a remainder of 34.
Put 4 as the next digit of the answer. 
Result so far: 104.0
The remainder is 34 after subtracting 3768 from 3802.
Take the next digit (0) from the dividend and append it to 34, then repeat: 340 / 942

Advancing to step 6:
942 goes into 340 0 times with a remainder of 340.
The number 0 becomes the next digit in our result. 
Result so far: 1040.0
Deduct 0 from 340 and we're left with 340.
Fetch the next digit (2) from the dividend, attach it to 340 and continue: 3402 / 942

Let's proceed to step 7:
3402 divided by 942 is 3 with a remainder of 576.
The number 3 becomes the next digit in our result. 
Result so far: 10403.0
If we take 2826 away from 3402, we end up with 576.
Append the next digit (1) from the dividend to 576 and continue with: 5761 / 942

Moving on to step 8:
The number 942 fits into 5761 6 times, leaving a remainder of 109.
Record the quotient 6 as the next digit in the result. 
Result so far: 104036.0
If we take 5652 away from 5761, we end up with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Let's proceed to step 9:
1090 divided by 942 is 1 with a remainder of 148.
Put 1 as the next digit of the answer. 
Result so far: 104036.1
If we subtract 942 from 1090, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Moving on to step 10:
The number 942 fits into 1480 1 times, leaving a remainder of 538.
Use 1 as the next digit of our solution. 
Result so far: 104036.11
Subtracting 942 from 1480 leaves us with 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

The quotient of the division is 104036.11, and the remainder is 0.538.