Let's divide 70330713 by 231
The aim is to understand the frequency of 231 in 70330713.

Step 1:
When dividing 7 by 231, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 231

On to step 2:
231 goes into 70 0 times with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Append the next digit (3) from the dividend to 70 and continue with: 703 / 231

Going ahead to step 3:
231 can be fit into 703 3 times, resulting in a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 693 away from 703, we end up with 10.
Fetch the next digit (3) from the dividend, attach it to 10 and continue: 103 / 231

Step 4:
103 divided by 231 is 0 with a remainder of 103.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
If we take 0 away from 103, we end up with 103.
Grab the next digit (0) from the dividend, add it to 103, then carry on: 1030 / 231

Going ahead to step 5:
231 can be fit into 1030 4 times, resulting in a remainder of 106.
Put 4 as the next digit of the answer. 
Result so far: 304.0
Deduct 924 from 1030 and we're left with 106.
Bring next digit (7) of the dividend behind the 106 and repeat the process: 1067 / 231

Step 6:
231 goes into 1067 4 times with a remainder of 143.
Use 4 as the next digit of our solution. 
Result so far: 3044.0
Subtract 924 from 1067 to get 143.
Fetch the next digit (1) from the dividend, attach it to 143 and continue: 1431 / 231

Let's proceed to step 7:
231 can be fit into 1431 6 times, resulting in a remainder of 45.
Record the quotient 6 as the next digit in the result. 
Result so far: 30446.0
If we take 1386 away from 1431, we end up with 45.
Grab the next digit (3) from the dividend, add it to 45, then carry on: 453 / 231

Let's proceed to step 8:
231 can be fit into 453 1 times, resulting in a remainder of 222.
Record the quotient 1 as the next digit in the result. 
Result so far: 304461.0
Subtract 231 from 453 to get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Let's proceed to step 9:
The number 231 fits into 2220 9 times, leaving a remainder of 141.
The number 9 becomes the next digit in our result. 
Result so far: 304461.9
If we subtract 2079 from 2220, we get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Moving on to step 10:
If we divide 1410 by 231, we get 6 and a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 304461.96
Subtract 1386 from 1410 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 11:
If we divide 240 by 231, we get 1 and a remainder of 9.
The next digit of our result is 1. 
Result so far: 304461.961
The remainder is 9 after subtracting 231 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 12:
231 can be fit into 90 0 times, resulting in a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 304461.961
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 13:
231 goes into 900 3 times with a remainder of 207.
Use 3 as the next digit of our solution. 
Result so far: 304461.96103
If we subtract 693 from 900, we get 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Advancing to step 14:
231 goes into 2070 8 times with a remainder of 222.
Record the quotient 8 as the next digit in the result. 
Result so far: 304461.961038
Subtracting 1848 from 2070 leaves us with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

On to step 15:
231 can be fit into 2220 9 times, resulting in a remainder of 141.
The number 9 becomes the next digit in our result. 
Result so far: 304461.9610389
Subtracting 2079 from 2220 leaves us with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Let's proceed to step 16:
1410 divided by 231 is 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 304461.96103896
The remainder is 24 after subtracting 1386 from 1410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Our division results in 304461.96103896 with a remaining 2.4e-08.