86643143 divided by 372 
Our goal is to divide 86643143 by 372.

Step 1:
8 divided by 372 is 0 with 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 (6) from the dividend and append it to 8, then repeat: 86 / 372

Advancing to step 2:
If we divide 86 by 372, we get 0 and a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Fetch the next digit (6) from the dividend, attach it to 86 and continue: 866 / 372

Moving on to step 3:
372 goes into 866 2 times with a remainder of 122.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 122 after subtracting 744 from 866.
Grab the next digit (4) from the dividend, add it to 122, then carry on: 1224 / 372

Advancing to step 4:
If we divide 1224 by 372, we get 3 and a remainder of 108.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Deduct 1116 from 1224 and we're left with 108.
Take the next digit (3) from the dividend and append it to 108, then repeat: 1083 / 372

Advancing to step 5:
1083 divided by 372 is 2 with a remainder of 339.
Put 2 as the next digit of the answer. 
Result so far: 232.0
Subtracting 744 from 1083 leaves us with 339.
Append the next digit (1) from the dividend to 339 and continue with: 3391 / 372

Going ahead to step 6:
3391 divided by 372 is 9 with a remainder of 43.
Record the quotient 9 as the next digit in the result. 
Result so far: 2329.0
If we take 3348 away from 3391, we end up with 43.
Bring next digit (4) of the dividend behind the 43 and repeat the process: 434 / 372

Going ahead to step 7:
372 can be fit into 434 1 times, resulting in a remainder of 62.
The next digit of our result is 1. 
Result so far: 23291.0
Subtract 372 from 434 to get 62.
Include the next digit (3) from the dividend after 62, then repeat: 623 / 372

Step 8:
372 goes into 623 1 times with a remainder of 251.
The next digit of our result is 1. 
Result so far: 232911.0
Deduct 372 from 623 and we're left with 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Let's proceed to step 9:
The number 372 fits into 2510 6 times, leaving a remainder of 278.
Use 6 as the next digit of our solution. 
Result so far: 232911.6
If we take 2232 away from 2510, we end up with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

Let's proceed to step 10:
372 goes into 2780 7 times with a remainder of 176.
The number 7 becomes the next digit in our result. 
Result so far: 232911.67
The remainder is 176 after subtracting 2604 from 2780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 11:
372 can be fit into 1760 4 times, resulting in a remainder of 272.
Write down 4 as next digit of the result. 
Result so far: 232911.674
If we take 1488 away from 1760, we end up with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Step 12:
372 goes into 2720 7 times with a remainder of 116.
Write down 7 as next digit of the result. 
Result so far: 232911.6747
If we take 2604 away from 2720, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Advancing to step 13:
372 goes into 1160 3 times with a remainder of 44.
Record the quotient 3 as the next digit in the result. 
Result so far: 232911.67473
If we subtract 1116 from 1160, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 14:
When dividing 440 by 372, we get 1 with a remainder of 68.
The next digit of our result is 1. 
Result so far: 232911.674731
The remainder is 68 after subtracting 372 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 15:
372 can be fit into 680 1 times, resulting in a remainder of 308.
The number 1 becomes the next digit in our result. 
Result so far: 232911.6747311
Subtracting 372 from 680 leaves us with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

The final outcome is 232911.6747311, with a leftover of 3.08e-06.