We look at the division of 51872300 by 386 
The aim is to understand the frequency of 386 in 51872300.

Moving on to step 1:
386 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 386

Let's proceed to step 2:
51 divided by 386 is 0 with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Append the next digit (8) from the dividend to 51 and continue with: 518 / 386

Going ahead to step 3:
If we divide 518 by 386, we get 1 and a remainder of 132.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 386 from 518 and we're left with 132.
Bring next digit (7) of the dividend behind the 132 and repeat the process: 1327 / 386

Step 4:
When dividing 1327 by 386, we get 3 with a remainder of 169.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtract 1158 from 1327 to get 169.
Append the next digit (2) from the dividend to 169 and continue with: 1692 / 386

Step 5:
386 can be fit into 1692 4 times, resulting in a remainder of 148.
The number 4 becomes the next digit in our result. 
Result so far: 134.0
The remainder is 148 after subtracting 1544 from 1692.
Include the next digit (3) from the dividend after 148, then repeat: 1483 / 386

Moving on to step 6:
1483 divided by 386 is 3 with a remainder of 325.
Use 3 as the next digit of our solution. 
Result so far: 1343.0
Subtract 1158 from 1483 to get 325.
Fetch the next digit (0) from the dividend, attach it to 325 and continue: 3250 / 386

Going ahead to step 7:
386 goes into 3250 8 times with a remainder of 162.
The next digit of our result is 8. 
Result so far: 13438.0
If we subtract 3088 from 3250, we get 162.
Grab the next digit (0) from the dividend, add it to 162, then carry on: 1620 / 386

Step 8:
The number 386 fits into 1620 4 times, leaving a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 134384.0
Deduct 1544 from 1620 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 9:
760 divided by 386 is 1 with a remainder of 374.
Put 1 as the next digit of the answer. 
Result so far: 134384.1
Subtract 386 from 760 to get 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Step 10:
386 goes into 3740 9 times with a remainder of 266.
Record the quotient 9 as the next digit in the result. 
Result so far: 134384.19
The remainder is 266 after subtracting 3474 from 3740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Moving on to step 11:
If we divide 2660 by 386, we get 6 and a remainder of 344.
Use 6 as the next digit of our solution. 
Result so far: 134384.196
Deduct 2316 from 2660 and we're left with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Let's proceed to step 12:
If we divide 3440 by 386, we get 8 and a remainder of 352.
Use 8 as the next digit of our solution. 
Result so far: 134384.1968
If we subtract 3088 from 3440, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

On to step 13:
386 goes into 3520 9 times with a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 134384.19689
Subtracting 3474 from 3520 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 14:
If we divide 460 by 386, we get 1 and a remainder of 74.
The number 1 becomes the next digit in our result. 
Result so far: 134384.196891
Deduct 386 from 460 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 15:
When dividing 740 by 386, we get 1 with a remainder of 354.
Put 1 as the next digit of the answer. 
Result so far: 134384.1968911
Deduct 386 from 740 and we're left with 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 final outcome is 134384.1968911, with a leftover of 3.54e-06.