We divide 85770151 by 399
Let's see how many times 399 fits into 85770151.

Let's proceed to step 1:
8 divided by 399 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 399

Advancing to step 2:
When dividing 85 by 399, we get 0 with a remainder of 85.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Include the next digit (7) from the dividend after 85, then repeat: 857 / 399

On to step 3:
857 divided by 399 is 2 with a remainder of 59.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 798 from 857 and we're left with 59.
Take the next digit (7) from the dividend and append it to 59, then repeat: 597 / 399

Going ahead to step 4:
The number 399 fits into 597 1 times, leaving a remainder of 198.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Deduct 399 from 597 and we're left with 198.
Fetch the next digit (0) from the dividend, attach it to 198 and continue: 1980 / 399

Moving on to step 5:
1980 divided by 399 is 4 with a remainder of 384.
The next digit of our result is 4. 
Result so far: 214.0
If we subtract 1596 from 1980, we get 384.
Append the next digit (1) from the dividend to 384 and continue with: 3841 / 399

On to step 6:
The number 399 fits into 3841 9 times, leaving a remainder of 250.
Put 9 as the next digit of the answer. 
Result so far: 2149.0
Subtracting 3591 from 3841 leaves us with 250.
Grab the next digit (5) from the dividend, add it to 250, then carry on: 2505 / 399

Going ahead to step 7:
If we divide 2505 by 399, we get 6 and a remainder of 111.
Write down 6 as next digit of the result. 
Result so far: 21496.0
If we subtract 2394 from 2505, we get 111.
Fetch the next digit (1) from the dividend, attach it to 111 and continue: 1111 / 399

Going ahead to step 8:
399 can be fit into 1111 2 times, resulting in a remainder of 313.
The next digit of our result is 2. 
Result so far: 214962.0
If we subtract 798 from 1111, we get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

On to step 9:
399 goes into 3130 7 times with a remainder of 337.
Put 7 as the next digit of the answer. 
Result so far: 214962.7
The remainder is 337 after subtracting 2793 from 3130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Going ahead to step 10:
399 goes into 3370 8 times with a remainder of 178.
Record the quotient 8 as the next digit in the result. 
Result so far: 214962.78
Subtracting 3192 from 3370 leaves us with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Let's proceed to step 11:
399 can be fit into 1780 4 times, resulting in a remainder of 184.
The number 4 becomes the next digit in our result. 
Result so far: 214962.784
If we take 1596 away from 1780, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 12:
399 goes into 1840 4 times with a remainder of 244.
The next digit of our result is 4. 
Result so far: 214962.7844
The remainder is 244 after subtracting 1596 from 1840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

The final outcome is 214962.7844, with a leftover of 0.00244.