91916728 divided by 620 
The aim is to understand the frequency of 620 in 91916728.

Advancing to step 1:
If we divide 9 by 620, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 620

Step 2:
620 can be fit into 91 0 times, resulting in a remainder of 91.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Grab the next digit (9) from the dividend, add it to 91, then carry on: 919 / 620

Moving on to step 3:
When dividing 919 by 620, we get 1 with a remainder of 299.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 299 after subtracting 620 from 919.
Take the next digit (1) from the dividend and append it to 299, then repeat: 2991 / 620

Step 4:
620 goes into 2991 4 times with a remainder of 511.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we subtract 2480 from 2991, we get 511.
Fetch the next digit (6) from the dividend, attach it to 511 and continue: 5116 / 620

Let's proceed to step 5:
620 can be fit into 5116 8 times, resulting in a remainder of 156.
Record the quotient 8 as the next digit in the result. 
Result so far: 148.0
Subtracting 4960 from 5116 leaves us with 156.
Take the next digit (7) from the dividend and append it to 156, then repeat: 1567 / 620

Let's proceed to step 6:
620 can be fit into 1567 2 times, resulting in a remainder of 327.
Record the quotient 2 as the next digit in the result. 
Result so far: 1482.0
If we subtract 1240 from 1567, we get 327.
Bring next digit (2) of the dividend behind the 327 and repeat the process: 3272 / 620

Moving on to step 7:
3272 divided by 620 is 5 with a remainder of 172.
Write down 5 as next digit of the result. 
Result so far: 14825.0
The remainder is 172 after subtracting 3100 from 3272.
Fetch the next digit (8) from the dividend, attach it to 172 and continue: 1728 / 620

Let's proceed to step 8:
If we divide 1728 by 620, we get 2 and a remainder of 488.
Record the quotient 2 as the next digit in the result. 
Result so far: 148252.0
Subtracting 1240 from 1728 leaves us with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Step 9:
620 can be fit into 4880 7 times, resulting in a remainder of 540.
Write down 7 as next digit of the result. 
Result so far: 148252.7
If we take 4340 away from 4880, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Moving on to step 10:
When dividing 5400 by 620, we get 8 with a remainder of 440.
Record the quotient 8 as the next digit in the result. 
Result so far: 148252.78
If we take 4960 away from 5400, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 11:
When dividing 4400 by 620, we get 7 with a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 148252.787
Subtracting 4340 from 4400 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
600 divided by 620 is 0 with a remainder of 600.
Write down 0 as next digit of the result. 
Result so far: 148252.787
Subtracting 0 from 600 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 13:
If we divide 6000 by 620, we get 9 and a remainder of 420.
Put 9 as the next digit of the answer. 
Result so far: 148252.78709
Subtract 5580 from 6000 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 14:
620 can be fit into 4200 6 times, resulting in a remainder of 480.
The next digit of our result is 6. 
Result so far: 148252.787096
Deduct 3720 from 4200 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 15:
If we divide 4800 by 620, we get 7 and a remainder of 460.
Put 7 as the next digit of the answer. 
Result so far: 148252.7870967
Deduct 4340 from 4800 and we're left with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Let's proceed to step 16:
When dividing 4600 by 620, we get 7 with a remainder of 260.
Record the quotient 7 as the next digit in the result. 
Result so far: 148252.78709677
Subtracting 4340 from 4600 leaves us with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

The final outcome is 148252.78709677, with a leftover of 2.6e-07.