Let's divide 74534412 by 210
The aim is to understand the frequency of 210 in 74534412.

Moving on to step 1:
If we divide 7 by 210, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 210

On to step 2:
210 can be fit into 74 0 times, resulting in a remainder of 74.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 74, we end up with 74.
Include the next digit (5) from the dividend after 74, then repeat: 745 / 210

Step 3:
210 can be fit into 745 3 times, resulting in a remainder of 115.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 630 from 745 and we're left with 115.
Include the next digit (3) from the dividend after 115, then repeat: 1153 / 210

Step 4:
210 can be fit into 1153 5 times, resulting in a remainder of 103.
The next digit of our result is 5. 
Result so far: 35.0
Deduct 1050 from 1153 and we're left with 103.
Append the next digit (4) from the dividend to 103 and continue with: 1034 / 210

On to step 5:
When dividing 1034 by 210, we get 4 with a remainder of 194.
Use 4 as the next digit of our solution. 
Result so far: 354.0
The remainder is 194 after subtracting 840 from 1034.
Take the next digit (4) from the dividend and append it to 194, then repeat: 1944 / 210

Advancing to step 6:
210 goes into 1944 9 times with a remainder of 54.
Write down 9 as next digit of the result. 
Result so far: 3549.0
Subtract 1890 from 1944 to get 54.
Append the next digit (1) from the dividend to 54 and continue with: 541 / 210

Moving on to step 7:
210 can be fit into 541 2 times, resulting in a remainder of 121.
Write down 2 as next digit of the result. 
Result so far: 35492.0
Subtracting 420 from 541 leaves us with 121.
Append the next digit (2) from the dividend to 121 and continue with: 1212 / 210

Advancing to step 8:
If we divide 1212 by 210, we get 5 and a remainder of 162.
The number 5 becomes the next digit in our result. 
Result so far: 354925.0
Deduct 1050 from 1212 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Advancing to step 9:
The number 210 fits into 1620 7 times, leaving a remainder of 150.
Write down 7 as next digit of the result. 
Result so far: 354925.7
If we take 1470 away from 1620, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 10:
210 goes into 1500 7 times with a remainder of 30.
The next digit of our result is 7. 
Result so far: 354925.77
Subtract 1470 from 1500 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 354925.77 and a remainder of 0.03.