43672487 divided by 855 
We want to figure out the number of times 43672487 can be divided by 855.

Going ahead to step 1:
855 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 855

Advancing to step 2:
If we divide 43 by 855, we get 0 and a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 43 leaves us with 43.
Append the next digit (6) from the dividend to 43 and continue with: 436 / 855

Advancing to step 3:
436 divided by 855 is 0 with a remainder of 436.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 436, we get 436.
Take the next digit (7) from the dividend and append it to 436, then repeat: 4367 / 855

Step 4:
The number 855 fits into 4367 5 times, leaving a remainder of 92.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 4275 from 4367 to get 92.
Include the next digit (2) from the dividend after 92, then repeat: 922 / 855

Advancing to step 5:
If we divide 922 by 855, we get 1 and a remainder of 67.
Write down 1 as next digit of the result. 
Result so far: 51.0
If we take 855 away from 922, we end up with 67.
Take the next digit (4) from the dividend and append it to 67, then repeat: 674 / 855

On to step 6:
855 goes into 674 0 times with a remainder of 674.
The number 0 becomes the next digit in our result. 
Result so far: 510.0
Deduct 0 from 674 and we're left with 674.
Take the next digit (8) from the dividend and append it to 674, then repeat: 6748 / 855

Step 7:
855 goes into 6748 7 times with a remainder of 763.
The number 7 becomes the next digit in our result. 
Result so far: 5107.0
Deduct 5985 from 6748 and we're left with 763.
Bring next digit (7) of the dividend behind the 763 and repeat the process: 7637 / 855

Moving on to step 8:
855 can be fit into 7637 8 times, resulting in a remainder of 797.
Use 8 as the next digit of our solution. 
Result so far: 51078.0
The remainder is 797 after subtracting 6840 from 7637.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7970, and continue the process.

On to step 9:
The number 855 fits into 7970 9 times, leaving a remainder of 275.
Record the quotient 9 as the next digit in the result. 
Result so far: 51078.9
The remainder is 275 after subtracting 7695 from 7970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

On to step 10:
When dividing 2750 by 855, we get 3 with a remainder of 185.
Put 3 as the next digit of the answer. 
Result so far: 51078.93
The remainder is 185 after subtracting 2565 from 2750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Advancing to step 11:
The number 855 fits into 1850 2 times, leaving a remainder of 140.
Record the quotient 2 as the next digit in the result. 
Result so far: 51078.932
If we take 1710 away from 1850, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 12:
1400 divided by 855 is 1 with a remainder of 545.
Record the quotient 1 as the next digit in the result. 
Result so far: 51078.9321
If we subtract 855 from 1400, we get 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

Going ahead to step 13:
855 can be fit into 5450 6 times, resulting in a remainder of 320.
Write down 6 as next digit of the result. 
Result so far: 51078.93216
Subtracting 5130 from 5450 leaves us with 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 14:
The number 855 fits into 3200 3 times, leaving a remainder of 635.
The number 3 becomes the next digit in our result. 
Result so far: 51078.932163
Subtracting 2565 from 3200 leaves us with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Advancing to step 15:
When dividing 6350 by 855, we get 7 with a remainder of 365.
Use 7 as the next digit of our solution. 
Result so far: 51078.9321637
The remainder is 365 after subtracting 5985 from 6350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

On to step 16:
If we divide 3650 by 855, we get 4 and a remainder of 230.
Use 4 as the next digit of our solution. 
Result so far: 51078.93216374
Deduct 3420 from 3650 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

The final result is 51078.93216374 with a remainder of 2.3e-07.