31603933 ÷ 607 
The aim is to understand the frequency of 607 in 31603933.

Step 1:
When dividing 3 by 607, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 607

Advancing to step 2:
607 goes into 31 0 times with a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Include the next digit (6) from the dividend after 31, then repeat: 316 / 607

Moving on to step 3:
The number 607 fits into 316 0 times, leaving a remainder of 316.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 316 leaves us with 316.
Append the next digit (0) from the dividend to 316 and continue with: 3160 / 607

Advancing to step 4:
The number 607 fits into 3160 5 times, leaving a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 3035 from 3160 and we're left with 125.
Bring next digit (3) of the dividend behind the 125 and repeat the process: 1253 / 607

Advancing to step 5:
607 goes into 1253 2 times with a remainder of 39.
Put 2 as the next digit of the answer. 
Result so far: 52.0
Subtract 1214 from 1253 to get 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 607

Let's proceed to step 6:
607 can be fit into 399 0 times, resulting in a remainder of 399.
Record the quotient 0 as the next digit in the result. 
Result so far: 520.0
If we take 0 away from 399, we end up with 399.
Append the next digit (3) from the dividend to 399 and continue with: 3993 / 607

Step 7:
When dividing 3993 by 607, we get 6 with a remainder of 351.
Write down 6 as next digit of the result. 
Result so far: 5206.0
Deduct 3642 from 3993 and we're left with 351.
Grab the next digit (3) from the dividend, add it to 351, then carry on: 3513 / 607

Advancing to step 8:
If we divide 3513 by 607, we get 5 and a remainder of 478.
The number 5 becomes the next digit in our result. 
Result so far: 52065.0
Subtracting 3035 from 3513 leaves us with 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Step 9:
If we divide 4780 by 607, we get 7 and a remainder of 531.
The number 7 becomes the next digit in our result. 
Result so far: 52065.7
If we subtract 4249 from 4780, we get 531.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5310, and continue the process.

Let's proceed to step 10:
When dividing 5310 by 607, we get 8 with a remainder of 454.
The number 8 becomes the next digit in our result. 
Result so far: 52065.78
Subtract 4856 from 5310 to get 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

Step 11:
607 can be fit into 4540 7 times, resulting in a remainder of 291.
Write down 7 as next digit of the result. 
Result so far: 52065.787
The remainder is 291 after subtracting 4249 from 4540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Advancing to step 12:
607 goes into 2910 4 times with a remainder of 482.
Use 4 as the next digit of our solution. 
Result so far: 52065.7874
The remainder is 482 after subtracting 2428 from 2910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Going ahead to step 13:
607 goes into 4820 7 times with a remainder of 571.
The next digit of our result is 7. 
Result so far: 52065.78747
If we subtract 4249 from 4820, we get 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5710, and continue the process.

Moving on to step 14:
607 can be fit into 5710 9 times, resulting in a remainder of 247.
Write down 9 as next digit of the result. 
Result so far: 52065.787479
Deduct 5463 from 5710 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Advancing to step 15:
If we divide 2470 by 607, we get 4 and a remainder of 42.
Use 4 as the next digit of our solution. 
Result so far: 52065.7874794
Deduct 2428 from 2470 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 16:
The number 607 fits into 420 0 times, leaving a remainder of 420.
The number 0 becomes the next digit in our result. 
Result so far: 52065.7874794
The remainder is 420 after subtracting 0 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

After the division, we end up with 52065.7874794 and a remainder of 4.2e-07.