97415251 ÷ 551 
The aim is to understand the frequency of 551 in 97415251.

Step 1:
When dividing 9 by 551, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 551

Advancing to step 2:
551 goes into 97 0 times with a remainder of 97.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 97 and we're left with 97.
Grab the next digit (4) from the dividend, add it to 97, then carry on: 974 / 551

Let's proceed to step 3:
551 can be fit into 974 1 times, resulting in a remainder of 423.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 551 from 974 leaves us with 423.
Bring next digit (1) of the dividend behind the 423 and repeat the process: 4231 / 551

Let's proceed to step 4:
551 can be fit into 4231 7 times, resulting in a remainder of 374.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we take 3857 away from 4231, we end up with 374.
Include the next digit (5) from the dividend after 374, then repeat: 3745 / 551

Step 5:
551 goes into 3745 6 times with a remainder of 439.
The number 6 becomes the next digit in our result. 
Result so far: 176.0
Deduct 3306 from 3745 and we're left with 439.
Take the next digit (2) from the dividend and append it to 439, then repeat: 4392 / 551

Moving on to step 6:
551 can be fit into 4392 7 times, resulting in a remainder of 535.
Put 7 as the next digit of the answer. 
Result so far: 1767.0
Subtract 3857 from 4392 to get 535.
Include the next digit (5) from the dividend after 535, then repeat: 5355 / 551

Moving on to step 7:
551 goes into 5355 9 times with a remainder of 396.
The number 9 becomes the next digit in our result. 
Result so far: 17679.0
Subtract 4959 from 5355 to get 396.
Fetch the next digit (1) from the dividend, attach it to 396 and continue: 3961 / 551

On to step 8:
551 goes into 3961 7 times with a remainder of 104.
The number 7 becomes the next digit in our result. 
Result so far: 176797.0
Deduct 3857 from 3961 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 9:
If we divide 1040 by 551, we get 1 and a remainder of 489.
Put 1 as the next digit of the answer. 
Result so far: 176797.1
The remainder is 489 after subtracting 551 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Moving on to step 10:
551 can be fit into 4890 8 times, resulting in a remainder of 482.
The number 8 becomes the next digit in our result. 
Result so far: 176797.18
Deduct 4408 from 4890 and we're left with 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Moving on to step 11:
551 goes into 4820 8 times with a remainder of 412.
Put 8 as the next digit of the answer. 
Result so far: 176797.188
Deduct 4408 from 4820 and we're left with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

The quotient of the division is 176797.188, and the remainder is 0.0412.