591143 divided by 37 
The aim is to understand the frequency of 37 in 591143.

Step 1:
5 divided by 37 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 37

On to step 2:
When dividing 59 by 37, we get 1 with a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 37 away from 59, we end up with 22.
Bring next digit (1) of the dividend behind the 22 and repeat the process: 221 / 37

Let's proceed to step 3:
221 divided by 37 is 5 with a remainder of 36.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtracting 185 from 221 leaves us with 36.
Grab the next digit (1) from the dividend, add it to 36, then carry on: 361 / 37

Going ahead to step 4:
The number 37 fits into 361 9 times, leaving a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 159.0
If we take 333 away from 361, we end up with 28.
Grab the next digit (4) from the dividend, add it to 28, then carry on: 284 / 37

Moving on to step 5:
When dividing 284 by 37, we get 7 with a remainder of 25.
The next digit of our result is 7. 
Result so far: 1597.0
The remainder is 25 after subtracting 259 from 284.
Append the next digit (3) from the dividend to 25 and continue with: 253 / 37

Advancing to step 6:
The number 37 fits into 253 6 times, leaving a remainder of 31.
The next digit of our result is 6. 
Result so far: 15976.0
Deduct 222 from 253 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 7:
If we divide 310 by 37, we get 8 and a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 15976.8
Deduct 296 from 310 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 8:
If we divide 140 by 37, we get 3 and a remainder of 29.
Put 3 as the next digit of the answer. 
Result so far: 15976.83
If we subtract 111 from 140, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 9:
37 goes into 290 7 times with a remainder of 31.
Put 7 as the next digit of the answer. 
Result so far: 15976.837
The remainder is 31 after subtracting 259 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 10:
The number 37 fits into 310 8 times, leaving a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 15976.8378
Deduct 296 from 310 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 11:
37 can be fit into 140 3 times, resulting in a remainder of 29.
Put 3 as the next digit of the answer. 
Result so far: 15976.83783
The remainder is 29 after subtracting 111 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 12:
37 can be fit into 290 7 times, resulting in a remainder of 31.
Record the quotient 7 as the next digit in the result. 
Result so far: 15976.837837
If we take 259 away from 290, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 13:
When dividing 310 by 37, we get 8 with a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 15976.8378378
Subtracting 296 from 310 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 14:
140 divided by 37 is 3 with a remainder of 29.
Use 3 as the next digit of our solution. 
Result so far: 15976.83783783
If we subtract 111 from 140, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The final outcome is 15976.83783783, with a leftover of 2.9e-08.