Let's divide 81098700 by 438
Our goal is to divide 81098700 by 438.

Going ahead to step 1:
If we divide 8 by 438, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 438

Going ahead to step 2:
If we divide 81 by 438, we get 0 and a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Append the next digit (0) from the dividend to 81 and continue with: 810 / 438

Moving on to step 3:
When dividing 810 by 438, we get 1 with a remainder of 372.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 438 away from 810, we end up with 372.
Bring next digit (9) of the dividend behind the 372 and repeat the process: 3729 / 438

Let's proceed to step 4:
3729 divided by 438 is 8 with a remainder of 225.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Deduct 3504 from 3729 and we're left with 225.
Grab the next digit (8) from the dividend, add it to 225, then carry on: 2258 / 438

Moving on to step 5:
438 can be fit into 2258 5 times, resulting in a remainder of 68.
Put 5 as the next digit of the answer. 
Result so far: 185.0
Deduct 2190 from 2258 and we're left with 68.
Bring next digit (7) of the dividend behind the 68 and repeat the process: 687 / 438

Step 6:
The number 438 fits into 687 1 times, leaving a remainder of 249.
Use 1 as the next digit of our solution. 
Result so far: 1851.0
If we take 438 away from 687, we end up with 249.
Include the next digit (0) from the dividend after 249, then repeat: 2490 / 438

On to step 7:
2490 divided by 438 is 5 with a remainder of 300.
The next digit of our result is 5. 
Result so far: 18515.0
Subtract 2190 from 2490 to get 300.
Include the next digit (0) from the dividend after 300, then repeat: 3000 / 438

Let's proceed to step 8:
3000 divided by 438 is 6 with a remainder of 372.
The next digit of our result is 6. 
Result so far: 185156.0
Subtract 2628 from 3000 to get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Let's proceed to step 9:
The number 438 fits into 3720 8 times, leaving a remainder of 216.
Use 8 as the next digit of our solution. 
Result so far: 185156.8
Deduct 3504 from 3720 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Moving on to step 10:
438 goes into 2160 4 times with a remainder of 408.
Write down 4 as next digit of the result. 
Result so far: 185156.84
Subtract 1752 from 2160 to get 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

On to step 11:
438 goes into 4080 9 times with a remainder of 138.
The number 9 becomes the next digit in our result. 
Result so far: 185156.849
Subtract 3942 from 4080 to get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Advancing to step 12:
1380 divided by 438 is 3 with a remainder of 66.
Record the quotient 3 as the next digit in the result. 
Result so far: 185156.8493
The remainder is 66 after subtracting 1314 from 1380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 13:
When dividing 660 by 438, we get 1 with a remainder of 222.
The next digit of our result is 1. 
Result so far: 185156.84931
If we subtract 438 from 660, we get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Let's proceed to step 14:
If we divide 2220 by 438, we get 5 and a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 185156.849315
Subtracting 2190 from 2220 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 15:
438 goes into 300 0 times with a remainder of 300.
The next digit of our result is 0. 
Result so far: 185156.849315
If we subtract 0 from 300, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 16:
438 goes into 3000 6 times with a remainder of 372.
The next digit of our result is 6. 
Result so far: 185156.84931506
If we subtract 2628 from 3000, we get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

The final result is 185156.84931506 with a remainder of 3.72e-07.