We're dividing 37509001 by 917 
The aim is to understand the frequency of 917 in 37509001.

Going ahead to step 1:
917 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 917

Step 2:
When dividing 37 by 917, we get 0 with a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 37 leaves us with 37.
Include the next digit (5) from the dividend after 37, then repeat: 375 / 917

On to step 3:
When dividing 375 by 917, we get 0 with a remainder of 375.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 375 leaves us with 375.
Append the next digit (0) from the dividend to 375 and continue with: 3750 / 917

Going ahead to step 4:
917 can be fit into 3750 4 times, resulting in a remainder of 82.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 3668 away from 3750, we end up with 82.
Take the next digit (9) from the dividend and append it to 82, then repeat: 829 / 917

Step 5:
If we divide 829 by 917, we get 0 and a remainder of 829.
Write down 0 as next digit of the result. 
Result so far: 40.0
If we subtract 0 from 829, we get 829.
Grab the next digit (0) from the dividend, add it to 829, then carry on: 8290 / 917

On to step 6:
When dividing 8290 by 917, we get 9 with a remainder of 37.
Record the quotient 9 as the next digit in the result. 
Result so far: 409.0
If we subtract 8253 from 8290, we get 37.
Grab the next digit (0) from the dividend, add it to 37, then carry on: 370 / 917

Step 7:
917 goes into 370 0 times with a remainder of 370.
Put 0 as the next digit of the answer. 
Result so far: 4090.0
If we take 0 away from 370, we end up with 370.
Fetch the next digit (1) from the dividend, attach it to 370 and continue: 3701 / 917

Moving on to step 8:
If we divide 3701 by 917, we get 4 and a remainder of 33.
Record the quotient 4 as the next digit in the result. 
Result so far: 40904.0
The remainder is 33 after subtracting 3668 from 3701.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 9:
The number 917 fits into 330 0 times, leaving a remainder of 330.
Put 0 as the next digit of the answer. 
Result so far: 40904.0
If we subtract 0 from 330, we get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Step 10:
3300 divided by 917 is 3 with a remainder of 549.
The number 3 becomes the next digit in our result. 
Result so far: 40904.03
Deduct 2751 from 3300 and we're left with 549.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5490, and continue the process.

Going ahead to step 11:
917 can be fit into 5490 5 times, resulting in a remainder of 905.
The next digit of our result is 5. 
Result so far: 40904.035
If we subtract 4585 from 5490, we get 905.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9050, and continue the process.

Let's proceed to step 12:
When dividing 9050 by 917, we get 9 with a remainder of 797.
Record the quotient 9 as the next digit in the result. 
Result so far: 40904.0359
Deduct 8253 from 9050 and we're left with 797.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7970, and continue the process.

Let's proceed to step 13:
917 can be fit into 7970 8 times, resulting in a remainder of 634.
The next digit of our result is 8. 
Result so far: 40904.03598
If we take 7336 away from 7970, we end up with 634.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6340, and continue the process.

Moving on to step 14:
917 can be fit into 6340 6 times, resulting in a remainder of 838.
Use 6 as the next digit of our solution. 
Result so far: 40904.035986
The remainder is 838 after subtracting 5502 from 6340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8380, and continue the process.

Moving on to step 15:
917 goes into 8380 9 times with a remainder of 127.
Write down 9 as next digit of the result. 
Result so far: 40904.0359869
Subtracting 8253 from 8380 leaves us with 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Step 16:
The number 917 fits into 1270 1 times, leaving a remainder of 353.
The number 1 becomes the next digit in our result. 
Result so far: 40904.03598691
Subtracting 917 from 1270 leaves us with 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

After the division, we end up with 40904.03598691 and a remainder of 3.53e-07.