38699355 ÷ 345 
The aim is to understand the frequency of 345 in 38699355.

Going ahead to step 1:
345 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 345

Let's proceed to step 2:
The number 345 fits into 38 0 times, leaving a remainder of 38.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Include the next digit (6) from the dividend after 38, then repeat: 386 / 345

Step 3:
345 goes into 386 1 times with a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 345 from 386 leaves us with 41.
Include the next digit (9) from the dividend after 41, then repeat: 419 / 345

Advancing to step 4:
When dividing 419 by 345, we get 1 with a remainder of 74.
Put 1 as the next digit of the answer. 
Result so far: 11.0
The remainder is 74 after subtracting 345 from 419.
Grab the next digit (9) from the dividend, add it to 74, then carry on: 749 / 345

Step 5:
345 goes into 749 2 times with a remainder of 59.
Use 2 as the next digit of our solution. 
Result so far: 112.0
The remainder is 59 after subtracting 690 from 749.
Fetch the next digit (3) from the dividend, attach it to 59 and continue: 593 / 345

Advancing to step 6:
345 goes into 593 1 times with a remainder of 248.
Record the quotient 1 as the next digit in the result. 
Result so far: 1121.0
If we take 345 away from 593, we end up with 248.
Fetch the next digit (5) from the dividend, attach it to 248 and continue: 2485 / 345

Moving on to step 7:
If we divide 2485 by 345, we get 7 and a remainder of 70.
The number 7 becomes the next digit in our result. 
Result so far: 11217.0
Subtracting 2415 from 2485 leaves us with 70.
Take the next digit (5) from the dividend and append it to 70, then repeat: 705 / 345

Moving on to step 8:
345 can be fit into 705 2 times, resulting in a remainder of 15.
Use 2 as the next digit of our solution. 
Result so far: 112172.0
If we subtract 690 from 705, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 9:
345 goes into 150 0 times with a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 112172.0
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 10:
When dividing 1500 by 345, we get 4 with a remainder of 120.
Record the quotient 4 as the next digit in the result. 
Result so far: 112172.04
The remainder is 120 after subtracting 1380 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 11:
If we divide 1200 by 345, we get 3 and a remainder of 165.
Use 3 as the next digit of our solution. 
Result so far: 112172.043
Deduct 1035 from 1200 and we're left with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Step 12:
345 can be fit into 1650 4 times, resulting in a remainder of 270.
Write down 4 as next digit of the result. 
Result so far: 112172.0434
If we take 1380 away from 1650, we end up with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Advancing to step 13:
The number 345 fits into 2700 7 times, leaving a remainder of 285.
The next digit of our result is 7. 
Result so far: 112172.04347
The remainder is 285 after subtracting 2415 from 2700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Advancing to step 14:
The number 345 fits into 2850 8 times, leaving a remainder of 90.
Use 8 as the next digit of our solution. 
Result so far: 112172.043478
Deduct 2760 from 2850 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.

Advancing to step 15:
The number 345 fits into 900 2 times, leaving a remainder of 210.
Record the quotient 2 as the next digit in the result. 
Result so far: 112172.0434782
Deduct 690 from 900 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 16:
2100 divided by 345 is 6 with a remainder of 30.
The next digit of our result is 6. 
Result so far: 112172.04347826
Deduct 2070 from 2100 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 112172.04347826, with a leftover of 3e-08.