93475123 ÷ 213 
The aim is to understand the frequency of 213 in 93475123.

Step 1:
When dividing 9 by 213, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (3) from the dividend and append it to 9, then repeat: 93 / 213

Step 2:
If we divide 93 by 213, we get 0 and a remainder of 93.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 93, we get 93.
Grab the next digit (4) from the dividend, add it to 93, then carry on: 934 / 213

Step 3:
213 can be fit into 934 4 times, resulting in a remainder of 82.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 82 after subtracting 852 from 934.
Take the next digit (7) from the dividend and append it to 82, then repeat: 827 / 213

Moving on to step 4:
When dividing 827 by 213, we get 3 with a remainder of 188.
Use 3 as the next digit of our solution. 
Result so far: 43.0
The remainder is 188 after subtracting 639 from 827.
Include the next digit (5) from the dividend after 188, then repeat: 1885 / 213

Step 5:
The number 213 fits into 1885 8 times, leaving a remainder of 181.
Use 8 as the next digit of our solution. 
Result so far: 438.0
Deduct 1704 from 1885 and we're left with 181.
Append the next digit (1) from the dividend to 181 and continue with: 1811 / 213

Moving on to step 6:
When dividing 1811 by 213, we get 8 with a remainder of 107.
Put 8 as the next digit of the answer. 
Result so far: 4388.0
If we subtract 1704 from 1811, we get 107.
Append the next digit (2) from the dividend to 107 and continue with: 1072 / 213

Step 7:
213 can be fit into 1072 5 times, resulting in a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 43885.0
If we take 1065 away from 1072, we end up with 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 213

Advancing to step 8:
213 goes into 73 0 times with a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 438850.0
If we take 0 away from 73, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 9:
If we divide 730 by 213, we get 3 and a remainder of 91.
Put 3 as the next digit of the answer. 
Result so far: 438850.3
The remainder is 91 after subtracting 639 from 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Moving on to step 10:
910 divided by 213 is 4 with a remainder of 58.
The number 4 becomes the next digit in our result. 
Result so far: 438850.34
Subtracting 852 from 910 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 11:
580 divided by 213 is 2 with a remainder of 154.
Use 2 as the next digit of our solution. 
Result so far: 438850.342
If we subtract 426 from 580, we get 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

On to step 12:
1540 divided by 213 is 7 with a remainder of 49.
Record the quotient 7 as the next digit in the result. 
Result so far: 438850.3427
The remainder is 49 after subtracting 1491 from 1540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 13:
213 goes into 490 2 times with a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 438850.34272
Subtracting 426 from 490 leaves us 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.

Going ahead to step 14:
When dividing 640 by 213, we get 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 438850.342723
Deduct 639 from 640 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 15:
213 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 438850.342723
If we subtract 0 from 10, we 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.

Going ahead to step 16:
When dividing 100 by 213, we get 0 with a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 438850.342723
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final result is 438850.342723 with a remainder of 1e-07.