29638189 ÷ 213 
The aim is to understand the frequency of 213 in 29638189.

Advancing to step 1:
When dividing 2 by 213, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 213

Step 2:
213 goes into 29 0 times with a remainder of 29.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 29 and we're left with 29.
Bring next digit (6) of the dividend behind the 29 and repeat the process: 296 / 213

Moving on to step 3:
The number 213 fits into 296 1 times, leaving a remainder of 83.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 213 from 296, we get 83.
Fetch the next digit (3) from the dividend, attach it to 83 and continue: 833 / 213

Going ahead to step 4:
The number 213 fits into 833 3 times, leaving a remainder of 194.
Write down 3 as next digit of the result. 
Result so far: 13.0
The remainder is 194 after subtracting 639 from 833.
Take the next digit (8) from the dividend and append it to 194, then repeat: 1948 / 213

Going ahead to step 5:
213 goes into 1948 9 times with a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
If we subtract 1917 from 1948, we get 31.
Include the next digit (1) from the dividend after 31, then repeat: 311 / 213

Advancing to step 6:
213 can be fit into 311 1 times, resulting in a remainder of 98.
Write down 1 as next digit of the result. 
Result so far: 1391.0
The remainder is 98 after subtracting 213 from 311.
Grab the next digit (8) from the dividend, add it to 98, then carry on: 988 / 213

Step 7:
When dividing 988 by 213, we get 4 with a remainder of 136.
The next digit of our result is 4. 
Result so far: 13914.0
If we take 852 away from 988, we end up with 136.
Append the next digit (9) from the dividend to 136 and continue with: 1369 / 213

Moving on to step 8:
1369 divided by 213 is 6 with a remainder of 91.
The number 6 becomes the next digit in our result. 
Result so far: 139146.0
The remainder is 91 after subtracting 1278 from 1369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Step 9:
If we divide 910 by 213, we get 4 and a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 139146.4
If we subtract 852 from 910, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 10:
The number 213 fits into 580 2 times, leaving a remainder of 154.
Use 2 as the next digit of our solution. 
Result so far: 139146.42
Subtract 426 from 580 to 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.

Let's proceed to step 11:
The number 213 fits into 1540 7 times, leaving a remainder of 49.
Record the quotient 7 as the next digit in the result. 
Result so far: 139146.427
Deduct 1491 from 1540 and we're left with 49.
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 12:
213 goes into 490 2 times with a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 139146.4272
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.

On to step 13:
If we divide 640 by 213, we get 3 and a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 139146.42723
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.

Step 14:
213 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 139146.42723
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 15:
The number 213 fits into 100 0 times, leaving a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 139146.42723
If we take 0 away from 100, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

After the division, we end up with 139146.42723 and a remainder of 1e-06.