We look at the division of 43138238 by 358 
The aim is to understand the frequency of 358 in 43138238.

Going ahead to step 1:
The number 358 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 358

Advancing to step 2:
358 goes into 43 0 times with a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Take the next digit (1) from the dividend and append it to 43, then repeat: 431 / 358

Moving on to step 3:
358 goes into 431 1 times with a remainder of 73.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 358 from 431 and we're left with 73.
Append the next digit (3) from the dividend to 73 and continue with: 733 / 358

Moving on to step 4:
The number 358 fits into 733 2 times, leaving a remainder of 17.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we take 716 away from 733, we end up with 17.
Take the next digit (8) from the dividend and append it to 17, then repeat: 178 / 358

Going ahead to step 5:
When dividing 178 by 358, we get 0 with a remainder of 178.
Record the quotient 0 as the next digit in the result. 
Result so far: 120.0
Subtract 0 from 178 to get 178.
Take the next digit (2) from the dividend and append it to 178, then repeat: 1782 / 358

Let's proceed to step 6:
358 goes into 1782 4 times with a remainder of 350.
Use 4 as the next digit of our solution. 
Result so far: 1204.0
Subtracting 1432 from 1782 leaves us with 350.
Grab the next digit (3) from the dividend, add it to 350, then carry on: 3503 / 358

Going ahead to step 7:
358 can be fit into 3503 9 times, resulting in a remainder of 281.
Use 9 as the next digit of our solution. 
Result so far: 12049.0
Subtracting 3222 from 3503 leaves us with 281.
Append the next digit (8) from the dividend to 281 and continue with: 2818 / 358

Let's proceed to step 8:
358 goes into 2818 7 times with a remainder of 312.
Use 7 as the next digit of our solution. 
Result so far: 120497.0
The remainder is 312 after subtracting 2506 from 2818.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

On to step 9:
The number 358 fits into 3120 8 times, leaving a remainder of 256.
Use 8 as the next digit of our solution. 
Result so far: 120497.8
Deduct 2864 from 3120 and we're left with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Moving on to step 10:
2560 divided by 358 is 7 with a remainder of 54.
Record the quotient 7 as the next digit in the result. 
Result so far: 120497.87
Subtract 2506 from 2560 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 11:
When dividing 540 by 358, we get 1 with a remainder of 182.
Put 1 as the next digit of the answer. 
Result so far: 120497.871
If we take 358 away from 540, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Advancing to step 12:
When dividing 1820 by 358, we get 5 with a remainder of 30.
The next digit of our result is 5. 
Result so far: 120497.8715
If we subtract 1790 from 1820, we 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.

Moving on to step 13:
If we divide 300 by 358, we get 0 and a remainder of 300.
The next digit of our result is 0. 
Result so far: 120497.8715
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 14:
The number 358 fits into 3000 8 times, leaving a remainder of 136.
Write down 8 as next digit of the result. 
Result so far: 120497.871508
If we subtract 2864 from 3000, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 15:
The number 358 fits into 1360 3 times, leaving a remainder of 286.
The number 3 becomes the next digit in our result. 
Result so far: 120497.8715083
Subtracting 1074 from 1360 leaves us with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Let's proceed to step 16:
2860 divided by 358 is 7 with a remainder of 354.
The next digit of our result is 7. 
Result so far: 120497.87150837
If we subtract 2506 from 2860, we get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

The quotient of the division is 120497.87150837, and the remainder is 3.54e-07.