87507603 ÷ 620 
The aim is to understand the frequency of 620 in 87507603.

On to step 1:
620 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 620

Step 2:
620 can be fit into 87 0 times, resulting in a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 87 leaves us with 87.
Append the next digit (5) from the dividend to 87 and continue with: 875 / 620

Let's proceed to step 3:
875 divided by 620 is 1 with a remainder of 255.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 620 from 875 leaves us with 255.
Bring next digit (0) of the dividend behind the 255 and repeat the process: 2550 / 620

Let's proceed to step 4:
620 can be fit into 2550 4 times, resulting in a remainder of 70.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we subtract 2480 from 2550, we get 70.
Include the next digit (7) from the dividend after 70, then repeat: 707 / 620

Going ahead to step 5:
620 can be fit into 707 1 times, resulting in a remainder of 87.
Put 1 as the next digit of the answer. 
Result so far: 141.0
Subtract 620 from 707 to get 87.
Append the next digit (6) from the dividend to 87 and continue with: 876 / 620

Going ahead to step 6:
620 goes into 876 1 times with a remainder of 256.
Write down 1 as next digit of the result. 
Result so far: 1411.0
Deduct 620 from 876 and we're left with 256.
Take the next digit (0) from the dividend and append it to 256, then repeat: 2560 / 620

Moving on to step 7:
If we divide 2560 by 620, we get 4 and a remainder of 80.
Record the quotient 4 as the next digit in the result. 
Result so far: 14114.0
The remainder is 80 after subtracting 2480 from 2560.
Append the next digit (3) from the dividend to 80 and continue with: 803 / 620

Going ahead to step 8:
When dividing 803 by 620, we get 1 with a remainder of 183.
Write down 1 as next digit of the result. 
Result so far: 141141.0
If we take 620 away from 803, we end up with 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Advancing to step 9:
620 can be fit into 1830 2 times, resulting in a remainder of 590.
The next digit of our result is 2. 
Result so far: 141141.2
The remainder is 590 after subtracting 1240 from 1830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

On to step 10:
If we divide 5900 by 620, we get 9 and a remainder of 320.
Write down 9 as next digit of the result. 
Result so far: 141141.29
Subtract 5580 from 5900 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 11:
620 goes into 3200 5 times with a remainder of 100.
Put 5 as the next digit of the answer. 
Result so far: 141141.295
Subtract 3100 from 3200 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 12:
620 can be fit into 1000 1 times, resulting in a remainder of 380.
The next digit of our result is 1. 
Result so far: 141141.2951
Subtract 620 from 1000 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

On to step 13:
When dividing 3800 by 620, we get 6 with a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 141141.29516
The remainder is 80 after subtracting 3720 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 14:
The number 620 fits into 800 1 times, leaving a remainder of 180.
The number 1 becomes the next digit in our result. 
Result so far: 141141.295161
If we subtract 620 from 800, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 15:
If we divide 1800 by 620, we get 2 and a remainder of 560.
Write down 2 as next digit of the result. 
Result so far: 141141.2951612
Subtract 1240 from 1800 to get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 16:
The number 620 fits into 5600 9 times, leaving a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 141141.29516129
Subtract 5580 from 5600 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 141141.29516129, with a leftover of 2e-08.