We look at the division of 54637437 by 376 
The aim is to understand the frequency of 376 in 54637437.

Moving on to step 1:
If we divide 5 by 376, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 376

On to step 2:
54 divided by 376 is 0 with a remainder of 54.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Fetch the next digit (6) from the dividend, attach it to 54 and continue: 546 / 376

Let's proceed to step 3:
376 can be fit into 546 1 times, resulting in a remainder of 170.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 376 from 546 and we're left with 170.
Bring next digit (3) of the dividend behind the 170 and repeat the process: 1703 / 376

Moving on to step 4:
When dividing 1703 by 376, we get 4 with a remainder of 199.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we subtract 1504 from 1703, we get 199.
Grab the next digit (7) from the dividend, add it to 199, then carry on: 1997 / 376

Moving on to step 5:
The number 376 fits into 1997 5 times, leaving a remainder of 117.
Use 5 as the next digit of our solution. 
Result so far: 145.0
Deduct 1880 from 1997 and we're left with 117.
Fetch the next digit (4) from the dividend, attach it to 117 and continue: 1174 / 376

On to step 6:
1174 divided by 376 is 3 with a remainder of 46.
The number 3 becomes the next digit in our result. 
Result so far: 1453.0
If we take 1128 away from 1174, we end up with 46.
Grab the next digit (3) from the dividend, add it to 46, then carry on: 463 / 376

On to step 7:
376 goes into 463 1 times with a remainder of 87.
Use 1 as the next digit of our solution. 
Result so far: 14531.0
The remainder is 87 after subtracting 376 from 463.
Fetch the next digit (7) from the dividend, attach it to 87 and continue: 877 / 376

Let's proceed to step 8:
376 can be fit into 877 2 times, resulting in a remainder of 125.
Write down 2 as next digit of the result. 
Result so far: 145312.0
If we subtract 752 from 877, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 9:
If we divide 1250 by 376, we get 3 and a remainder of 122.
Write down 3 as next digit of the result. 
Result so far: 145312.3
Subtracting 1128 from 1250 leaves us with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Going ahead to step 10:
The number 376 fits into 1220 3 times, leaving a remainder of 92.
The next digit of our result is 3. 
Result so far: 145312.33
Deduct 1128 from 1220 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

The final outcome is 145312.33, with a leftover of 0.092.