43536985 divided by 800 
We want to figure out the number of times 43536985 can be divided by 800.

Moving on to step 1:
The number 800 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 800

Going ahead to step 2:
43 divided by 800 is 0 with a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Append the next digit (5) from the dividend to 43 and continue with: 435 / 800

Going ahead to step 3:
If we divide 435 by 800, we get 0 and a remainder of 435.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 435, we end up with 435.
Append the next digit (3) from the dividend to 435 and continue with: 4353 / 800

Advancing to step 4:
When dividing 4353 by 800, we get 5 with a remainder of 353.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 4000 from 4353 and we're left with 353.
Fetch the next digit (6) from the dividend, attach it to 353 and continue: 3536 / 800

Step 5:
3536 divided by 800 is 4 with a remainder of 336.
Put 4 as the next digit of the answer. 
Result so far: 54.0
If we take 3200 away from 3536, we end up with 336.
Append the next digit (9) from the dividend to 336 and continue with: 3369 / 800

Advancing to step 6:
If we divide 3369 by 800, we get 4 and a remainder of 169.
The number 4 becomes the next digit in our result. 
Result so far: 544.0
Subtract 3200 from 3369 to get 169.
Take the next digit (8) from the dividend and append it to 169, then repeat: 1698 / 800

Let's proceed to step 7:
800 can be fit into 1698 2 times, resulting in a remainder of 98.
Write down 2 as next digit of the result. 
Result so far: 5442.0
Subtract 1600 from 1698 to get 98.
Take the next digit (5) from the dividend and append it to 98, then repeat: 985 / 800

Step 8:
If we divide 985 by 800, we get 1 and a remainder of 185.
The next digit of our result is 1. 
Result so far: 54421.0
Subtracting 800 from 985 leaves us with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Let's proceed to step 9:
800 can be fit into 1850 2 times, resulting in a remainder of 250.
The next digit of our result is 2. 
Result so far: 54421.2
Deduct 1600 from 1850 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Advancing to step 10:
When dividing 2500 by 800, we get 3 with a remainder of 100.
Put 3 as the next digit of the answer. 
Result so far: 54421.23
Subtract 2400 from 2500 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.

Let's proceed to step 11:
1000 divided by 800 is 1 with a remainder of 200.
Record the quotient 1 as the next digit in the result. 
Result so far: 54421.231
Subtract 800 from 1000 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 12:
800 can be fit into 2000 2 times, resulting in a remainder of 400.
The next digit of our result is 2. 
Result so far: 54421.2312
Subtracting 1600 from 2000 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 13:
When dividing 4000 by 800, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 54421.23125
Subtract 4000 from 4000 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.

Going ahead to step 14:
If we divide 0 by 800, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 54421.23125
Subtracting 0 from 0 leaves us 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 15:
800 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 54421.23125
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.

Our division results in 54421.23125 with a remaining 0.0.