Let's divide 15520790 by 237
The aim is to understand the frequency of 237 in 15520790.

Going ahead to step 1:
If we divide 1 by 237, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 237

On to step 2:
When dividing 15 by 237, we get 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Fetch the next digit (5) from the dividend, attach it to 15 and continue: 155 / 237

Step 3:
When dividing 155 by 237, we get 0 with a remainder of 155.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 155 after subtracting 0 from 155.
Append the next digit (2) from the dividend to 155 and continue with: 1552 / 237

On to step 4:
1552 divided by 237 is 6 with a remainder of 130.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 1422 from 1552 to get 130.
Fetch the next digit (0) from the dividend, attach it to 130 and continue: 1300 / 237

On to step 5:
237 can be fit into 1300 5 times, resulting in a remainder of 115.
Put 5 as the next digit of the answer. 
Result so far: 65.0
Subtract 1185 from 1300 to get 115.
Grab the next digit (7) from the dividend, add it to 115, then carry on: 1157 / 237

Going ahead to step 6:
When dividing 1157 by 237, we get 4 with a remainder of 209.
Write down 4 as next digit of the result. 
Result so far: 654.0
Deduct 948 from 1157 and we're left with 209.
Bring next digit (9) of the dividend behind the 209 and repeat the process: 2099 / 237

Advancing to step 7:
The number 237 fits into 2099 8 times, leaving a remainder of 203.
The next digit of our result is 8. 
Result so far: 6548.0
Subtracting 1896 from 2099 leaves us with 203.
Append the next digit (0) from the dividend to 203 and continue with: 2030 / 237

Step 8:
The number 237 fits into 2030 8 times, leaving a remainder of 134.
Put 8 as the next digit of the answer. 
Result so far: 65488.0
Deduct 1896 from 2030 and we're left with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Step 9:
The number 237 fits into 1340 5 times, leaving a remainder of 155.
Record the quotient 5 as the next digit in the result. 
Result so far: 65488.5
If we subtract 1185 from 1340, we get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Moving on to step 10:
237 can be fit into 1550 6 times, resulting in a remainder of 128.
Put 6 as the next digit of the answer. 
Result so far: 65488.56
If we subtract 1422 from 1550, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 11:
The number 237 fits into 1280 5 times, leaving a remainder of 95.
Write down 5 as next digit of the result. 
Result so far: 65488.565
Deduct 1185 from 1280 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Step 12:
237 goes into 950 4 times with a remainder of 2.
The next digit of our result is 4. 
Result so far: 65488.5654
If we subtract 948 from 950, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 13:
237 goes into 20 0 times with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 65488.5654
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 14:
The number 237 fits into 200 0 times, leaving a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 65488.5654
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

After the division, we end up with 65488.5654 and a remainder of 2e-05.