84018641 ÷ 800 
The aim is to understand the frequency of 800 in 84018641.

Let's proceed to step 1:
800 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 800

Advancing to step 2:
800 can be fit into 84 0 times, resulting in a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 84, we get 84.
Grab the next digit (0) from the dividend, add it to 84, then carry on: 840 / 800

On to step 3:
800 goes into 840 1 times with a remainder of 40.
The next digit of our result is 1. 
Result so far: 1.0
If we take 800 away from 840, we end up with 40.
Include the next digit (1) from the dividend after 40, then repeat: 401 / 800

On to step 4:
The number 800 fits into 401 0 times, leaving a remainder of 401.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 401 leaves us with 401.
Append the next digit (8) from the dividend to 401 and continue with: 4018 / 800

Let's proceed to step 5:
The number 800 fits into 4018 5 times, leaving a remainder of 18.
The number 5 becomes the next digit in our result. 
Result so far: 105.0
Deduct 4000 from 4018 and we're left with 18.
Append the next digit (6) from the dividend to 18 and continue with: 186 / 800

On to step 6:
186 divided by 800 is 0 with a remainder of 186.
The number 0 becomes the next digit in our result. 
Result so far: 1050.0
If we subtract 0 from 186, we get 186.
Include the next digit (4) from the dividend after 186, then repeat: 1864 / 800

Let's proceed to step 7:
When dividing 1864 by 800, we get 2 with a remainder of 264.
Use 2 as the next digit of our solution. 
Result so far: 10502.0
Subtract 1600 from 1864 to get 264.
Grab the next digit (1) from the dividend, add it to 264, then carry on: 2641 / 800

Advancing to step 8:
If we divide 2641 by 800, we get 3 and a remainder of 241.
Record the quotient 3 as the next digit in the result. 
Result so far: 105023.0
Deduct 2400 from 2641 and we're left with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Let's proceed to step 9:
When dividing 2410 by 800, we get 3 with a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 105023.3
If we subtract 2400 from 2410, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
800 goes into 100 0 times with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 105023.3
Subtract 0 from 100 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.

Advancing to step 11:
The number 800 fits into 1000 1 times, leaving a remainder of 200.
Put 1 as the next digit of the answer. 
Result so far: 105023.301
The remainder is 200 after subtracting 800 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 12:
When dividing 2000 by 800, we get 2 with a remainder of 400.
The number 2 becomes the next digit in our result. 
Result so far: 105023.3012
If we subtract 1600 from 2000, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 13:
When dividing 4000 by 800, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 105023.30125
If we take 4000 away from 4000, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 14:
If we divide 0 by 800, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 105023.30125
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 15:
0 divided by 800 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 105023.30125
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 105023.30125, with a leftover of 0.0.