53971837 ÷ 151 
The aim is to understand the frequency of 151 in 53971837.

Let's proceed to step 1:
5 divided by 151 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 151

Advancing to step 2:
When dividing 53 by 151, we get 0 with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 53 leaves us with 53.
Grab the next digit (9) from the dividend, add it to 53, then carry on: 539 / 151

Advancing to step 3:
The number 151 fits into 539 3 times, leaving a remainder of 86.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 453 from 539 leaves us with 86.
Append the next digit (7) from the dividend to 86 and continue with: 867 / 151

Let's proceed to step 4:
The number 151 fits into 867 5 times, leaving a remainder of 112.
Write down 5 as next digit of the result. 
Result so far: 35.0
Subtracting 755 from 867 leaves us with 112.
Fetch the next digit (1) from the dividend, attach it to 112 and continue: 1121 / 151

Going ahead to step 5:
151 goes into 1121 7 times with a remainder of 64.
Use 7 as the next digit of our solution. 
Result so far: 357.0
If we subtract 1057 from 1121, we get 64.
Append the next digit (8) from the dividend to 64 and continue with: 648 / 151

Going ahead to step 6:
When dividing 648 by 151, we get 4 with a remainder of 44.
The number 4 becomes the next digit in our result. 
Result so far: 3574.0
The remainder is 44 after subtracting 604 from 648.
Grab the next digit (3) from the dividend, add it to 44, then carry on: 443 / 151

Advancing to step 7:
The number 151 fits into 443 2 times, leaving a remainder of 141.
Use 2 as the next digit of our solution. 
Result so far: 35742.0
If we take 302 away from 443, we end up with 141.
Include the next digit (7) from the dividend after 141, then repeat: 1417 / 151

Moving on to step 8:
The number 151 fits into 1417 9 times, leaving a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 357429.0
If we subtract 1359 from 1417, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 9:
151 can be fit into 580 3 times, resulting in a remainder of 127.
Put 3 as the next digit of the answer. 
Result so far: 357429.3
Subtract 453 from 580 to get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 10:
151 can be fit into 1270 8 times, resulting in a remainder of 62.
The next digit of our result is 8. 
Result so far: 357429.38
Deduct 1208 from 1270 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 11:
151 goes into 620 4 times with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 357429.384
Subtracting 604 from 620 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 12:
When dividing 160 by 151, we get 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 357429.3841
Subtracting 151 from 160 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 13:
The number 151 fits into 90 0 times, leaving a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 357429.3841
The remainder is 90 after subtracting 0 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 14:
900 divided by 151 is 5 with a remainder of 145.
Write down 5 as next digit of the result. 
Result so far: 357429.384105
Subtract 755 from 900 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Advancing to step 15:
151 goes into 1450 9 times with a remainder of 91.
The number 9 becomes the next digit in our result. 
Result so far: 357429.3841059
If we take 1359 away from 1450, we end up with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Step 16:
The number 151 fits into 910 6 times, leaving a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 357429.38410596
The remainder is 4 after subtracting 906 from 910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 357429.38410596 and a remainder of 4e-09.